[Ti content] Time to get something done...- Mtbr.com
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  1. #1
    Holy Chromoly!!
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    [Ti content] Time to get something done...

    ... Im a big lurker on this SSp board and post every once in a while on the Vintage board, since thats my biggest passion within the sports.

    After cruising 2+ yrs on my 1994 Breezer Storm as a singlespeed with Dirt Drop bars, I found it was about time to get a proper dedicated singlespeed. I am a framebuilder wannabee and wanted to build a frame myself this year. Steel would be the prime choice, but for a singlespeed I have lusted titanium for quite a while. Have had some Ti frame experiences, which didn't quite came out as planned, but with new experiences I re-set my goals to get me a Ti frame built to my specs. This would be my final ordeal before start building something myself.

    Building something myself would be very time consuming and I didn't want to wait so long for a singlespeed to finish. Wanting a ti frame, I saw the only right choice in getting one made.

    Teamed up with a very cool American guy (Darren Mark Crisp), living in Italy and started this project. We are reaching the end of the project and hope to pick up the finished product next weekend.


    Design goals;

    I wanted to keep the frame as classy, simplistic as possible. Everything in the right place, for the right job, no extra frills, bells or other stuff. I have a WTB Phoenix SE frameset (in the process of making it a complete bike) and having a great admiration for guys like Steve Potts and Charlie Cunningham, made me like the idea behind the geometry of the Phoenix and its predicesors (Cunninghams). The fairly compact frames they made, have quite some seatpost extension. I started riding Drop bars 3 years back and really liked them. I began to realize I got more and more 'trouble' adjusting back to a flat bar. The Phoenix will get a Dirt Drop, but this SS bike should get one as well.

    Short list of the geo/frame specs:

    -super compact frame
    -stiff frame, yet complaint vertically
    -somewhat raised front end (headtube) for the Dirt Drops
    -full rigid geo (no suspension correction up front)
    -complaint (vertically) design with a tall seatpost
    -Breezer style, ss specific dropouts
    -disc brake only
    -EBB shell for PhilWood eccentric with set screws

    I took a moderate seatpost length and drew up the frame height for this frame a few cm's above the line were normally 'limit' would be on your seatpost. This is the height for the frame, in my case approx. 14". Toptube length as on most of my other bikes and which works for me with the DD bars; 565mm's in a horizontal plane (effective). Fork height 400mms with 39mms of offset. Side note; this bike will get a custom made Ti seatpost to fit the frame as well.

    Additional design spec's;

    -eccentric turned headtube, just since it looks nicer than just a straight tube and leaving the rear of the tube unmachined for better weldablitiy of the top and downtubes.
    -straight rear end, no s-bends, just straight tubes, like on a Phoenix frame
    -all, I repeat, all round tubes.

    After a lot of phonecalls, numerous emails and nights of staring at the ceiling, I finally received the first pics of what to come... I know you all like pics like these... I specifically asked if he could make pictures of this build. These are the pic's Ive got so far.

    More will follow as the rear stays will be mitterd and attached to the front triangle.

    Can't wait to get this bike out on the trails!!!


    BB with setscrew nuts set up for welding:




    Cutting the BB shell mitter on the mill:




    Seattube, BB shell ready to be tacked and welded. Set screw nuts already welded.




    The Torchmaster:




    yes... I like....




    Downtube, toptube and the custom machined, relieved headtube put into the Anvil jig:




    Post welding:




    Front triangle overview before welding:






    As said, more to come....


    Find out more info on the craftsman responsible for the building of this Ti art piece:

    https://www.crisptitanium.com
    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  2. #2
    Holy Chromoly!!
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    Tube specs:

    Downtube: 38.1mm
    Toptube: 34.9mm
    Seattube: 34.9mm

    The seattube is reinforced with a Paragon seattube insert, to accomodate the 30.9mm seatpost we will make for this frame. The tall extension of the seatpost will stress this area quite a lot, so the insert is used to reinforce the whole area around the seattube/toptube/seatstay junction.
    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  3. #3
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    That's some mighty fine mitring, let alone the welds.... mmm looking forward to more pics :-)

  4. #4
    Holy Chromoly!!
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    Okay, the only option I had to get the drawing I made, uploaded for internet viewing, was shooting a pic of it.

    Its 'clickable' to a bigger sized version which should be readable.

    Notice the dropouts aren't in this drawing, since I didn't have the accurate measurements of those during the making of this drawing. The drawing has been slightly altered by Darren Crisp so he could build directly from this drawing. The seattube and downtube are now centered to the center of the BB too.

    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  5. #5
    Holy Chromoly!!
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    As seen on the drawing above, I had a Goosneck stem invisioned for this bike, since I will be using the original WTB Dirt Drops.

    From day one that I started this project, Ive been working on getting a Goosneck made. Unfortunatly this hasn't been easy. Actually Ive been working on that even longer, since I need one for my WTB Phoenix SE and Breezer Storm as well. Rick Hunter @Hunter Cycles was willing to give it a try.

    This is what we would need;




    Rick didn't had the tools in-house needed to bent the tubes without having the tube buckle or crimp and thus maintaining a constant tube diameter. Time went by and 3 weeks back Rick told me it wasn't going to happen at this point. It proved to be too difficult to get it done in this short time. I asked if he could make a 'standard' quill stem to fit the fork (1 1/8" threaded) so I could ride nevertheless. Rick acted fast and brazed up a nice stem that same day. Shipped it per express over here (the Netherlands) so I could have it painted pretty soon.

    His brazing is immaculate, ashame to have it painted actually....








    After painting:








    Next up: the fork.....
    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  6. #6
    Holy Chromoly!!
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    With the name LeCadre, a friend of mine has been building frames and forks for some time now and he seemed a very capable person to make me a fork for this project.

    At first we wanted to copy somewhat of the Type II forks, but the crown-assy seemed to be undoable with the tubes available right now. The second option, which we now got, was a straight bladed, lugluss construction.

    I drew my own disc tab and had it cut out of stainless steel. The idea was to have parts of the disc tab covered during painting, so that the contact surfaces for the bolts and caliper would be 'naked'.




    The parts needed;




    Dropouts with eyelets for fenders. We don't use fenders, so off those eyelets go!




    Cutting, filing, fitting, more filing etc, untill it all fitted nicely and could be jigged up for brazing:




    After brazing; Et voilá, c'est un fourche rigide de LeCadre:




    The initial idea of having parts of the stainless steel disc tab unpainted, didn't seem to work out as well as planned. The painter adviced me to paint it completely, since having it masked of, would have created an edge of paint that easily would break. Next time I will make the disc tab differently, with elevated area's so we don't have this problem anymore and can make the idea work.





    (As you can see, the bolts of the disc caliper already left a nasty mark on the tab... )
    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  7. #7
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    Wow. I wish I had that kind of cash for bikes. I can abrely afford the new bars I'm getting for my Surly.

  8. #8
    ppp
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    Magnifique !

  9. #9
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    That looks like a great project, looking forward to seeing more!

  10. #10
    those are Rollercams...
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    Absolutely beautiful.

    My only question, and it's only a question, why didn't you go with a Potts Type II? That said, your fork looks outstanding.
    Last edited by WTB-rider; 08-15-2006 at 04:57 PM.

    Truly a wealth of useless information.


    http://blackdogadventureteam.blogspot.com/

  11. #11
    Holy Chromoly!!
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    Potts is a little bit hard to reach for me at this point (not that much of an emailer). Seeing the initial plan and its tight schedule I opted to have a fork made here in the Netherlands to be finished in time.

    I have to say though, that this whole project actually started since a Ti Potts with Type II was actually my wish, but would cut even more cash out of the budget. After some contact with Darren, I decided to take the 'alternate' Euro-Route since communications and all work just a little bit better, being in the same time-area as the builder. Seeing the majority of details that I wanted just exactly the way I invisioned, I thoughed this would be better. So far it has just worked out great, couldn't have asked for more....
    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  12. #12
    Holy Chromoly!!
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    Okay.. got some more pics. The front traingle is complete finished since a few days already. The stay-supplier is taking his time to get us our stays, so Darren can't finish the frame at this point. Hope it will work out soon, since I plan on going to Italy to pick up the frame end next week... fingers crossed.
    Attached Images Attached Images
    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  13. #13
    ppp
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    Really beautiful welds !!!

  14. #14
    Unit 91
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    Wow, that frame looks amazing. Keep us posted!
    Bikes

  15. #15
    velocipede technician
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    Quote Originally Posted by Jeroen
    As seen on the drawing above, I had a Goosneck stem invisioned for this bike, since I will be using the original WTB Dirt Drops.

    From day one that I started this project, Ive been working on getting a Goosneck made. Unfortunatly this hasn't been easy. Actually Ive been working on that even longer, since I need one for my WTB Phoenix SE and Breezer Storm as well. Rick Hunter @Hunter Cycles was willing to give it a try.

    This is what we would need;




    Rick didn't had the tools in-house needed to bent the tubes without having the tube buckle or crimp and thus maintaining a constant tube diameter. Time went by and 3 weeks back Rick told me it wasn't going to happen at this point. It proved to be too difficult to get it done in this short time. I asked if he could make a 'standard' quill stem to fit the fork (1 1/8" threaded) so I could ride nevertheless. Rick acted fast and brazed up a nice stem that same day. Shipped it per express over here (the Netherlands) so I could have it painted pretty soon.

    His brazing is immaculate, ashame to have it painted actually....








    After painting:








    Next up: the fork.....
    great build story,really nice lookin bike now how bout more pics of the green bike with the LD stem

  16. #16
    Holy Chromoly!!
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    Based upon a logo Darren sent me last week, I drew up a design for a headbadge. Had it laser cut out of 1 mm stainless steel. Received several versions today and bent them around a tube to fit the headtube later on.

    Im pleased with the result:
    Attached Images Attached Images
    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  17. #17
    IVMTB & VMBEFG Illuminati
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    come on Jeroen! I WANT MORE UPDATES!!!!

  18. #18
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    Oh my god! First time seeing this thread...

    You sir... are awesome...

  19. #19
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    This is my first post here and wow, what a thread to do it in. My friend, that is art. Please keep the updates going.

  20. #20
    French for "Suck"
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    This is amazing. I can't wait to see what the stays and dropouts look like!

  21. #21
    Use this space for what?
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    Wow, beautiful bike! Updates pleaaaase!
    '08 Cannondale SystemSIX 4
    '07 Bianchi MUSS - with trick bits
    '04 Kona Stinky - Sold!
    '86 Miele

  22. #22
    velocipede technician
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    id like to echo all the above statements...... please, please, please update
    looking for 20-21" P team

  23. #23
    blame me for missed rides
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    update (?) from EICMA


  24. #24
    Recovering couch patato
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    Some more goodness by the end of this thread : http://www.dirty-pages.net/forum/vie...0b9d6cc136e9c5

    Nice bike Jeroen.
    Does it come in XL?
    Can I get a fancy color on mine?

    ;-)

    Congrats, glad it worked out the way you hoped.

  25. #25
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    That looks great Jeroen!

  26. #26
    velocipede technician
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    dankzegging (sp?)
    looking for 20-21" P team

  27. #27
    Full Tilt Boogie
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    Very pretty bike. 31.6 seatpost for stiffness at that length?
    I sell bikes here. Check out the Blog here. Facebook.

  28. #28
    Holy Chromoly!!
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    Thanks for the kind words. Im amazed at how the bike turned out. Tomorrow morning I can finally take it out for its first spin and obviously I don't need to tell how exited I am.

    The trip I made last week to Italy to build up the bike and have it displayed at the Milan Bike Show, was simply amazing. I will give you guys an English version of what I wrote at our Dutch website Dirty-Pages.net (see link posted above).

    @Benwitt11:

    Its a 30.9 custom made seatpost. I wanted an oversized seattube in the frame and use a long seatpost (see remarks on this at the start of this thread). A 27.2mm post would be a little too much 'flexxy' I recon and seeing the transition of a 35mm seattube in the frame to a 27.2 mm seatpost doesn't look that gentle. Since both post and frame are Ti, we could leave out a alu sleeve or similair, what you see on other Ti frames preventing seizing of a alu post. The seattube is reinforced with a 35-30.9 Paragon sleeve and so the seatpost size was born ;-)

    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  29. #29
    those are Rollercams...
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    Quote Originally Posted by hollister
    great build story,really nice lookin bike now how bout more pics of the green bike with the LD stem

    Not looking to hijack the attention from Jeroen's awesome ride but since you asked, http://forums.mtbr.com/showthread.ph...my+steve+potts

    Truly a wealth of useless information.


    http://blackdogadventureteam.blogspot.com/

  30. #30
    dirty hippy mountainbiker
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    Why not go with a MattChesterishly long headtube and use a standard stem? Why a quill stem?

    -M
    Mike Henderson, Dirty Hippy Mountain Biker and part owner of Jet Lites.

  31. #31
    Holy Chromoly!!
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    The toptube would be too high for my liking and I wanted to stay close to let say the lines of a Potts-built Phoenix or Cunningham. The plan is still such that I want a Goosneck stem for this bike to come even more close to that classic look.
    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  32. #32
    velocipede technician
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    Quote Originally Posted by WTB-rider
    Not looking to hijack the attention from Jeroen's awesome ride but since you asked, http://forums.mtbr.com/showthread.ph...my+steve+potts
    wonderful stuff
    looking for 20-21" P team

  33. #33
    Holy Chromoly!!
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    Tuesday 12 September my buddy Ruben and I left for our 7 day trip to pick-up/build-up the finished Ti SS frame. Our first part of the trip (1000km) would lead us to Lago Maggiore, south Switzerland. This would be our ‘home-base’ for the upcomming days, since my bike would be displayed at Milan Bike Show (50 miles down south). We slept there and left for the second stage of our trip wednesday, to drive another 500kms down south into the heart of Italy, to the lovely Tuscane place called Castiglion Fiorentino where Darren Crisp builds his works of art. Late that noon we arrived at his place.

    With an impressive view on the surrounding hills around Castiglion Fiorentino we shook hands with Darren and had some small talk about our trip. Let’s go to business, gimme my frame! ;-) Direct aside the drive way to his house, the workshop is located and with the doors open I could make out some fine lines of a titanium structure, hanging in a work stand.



    The hack saw and steel piping you see in the entrance where there, since Darren was busy completing his booth-structure for the Milan Show.

    I already saw pictures of the frame coming to live and from the completed front traingle, but I didn’t have any pic’s of the completed frame with the rear end as well. The tubes for the chain and seat stays where only a few days at Darren’s place and I’d almost say my frame was still hot from being welded ;-) Despite 4 days of continuous work on my frame, another frame and the booth for the show, Darren delivered awesome work on my frame! My frame is finally ready to be build into a complete bike. First impressions are important and after 5 months of intensive thinking, drawing, debating, calling, email, etc. about a frame, the expectations where obviously high and being a detailed-kinda guy, I expected at least one thing to be not completely satisfying. And there was one thing that I didn’t planned originally; I wanted zip-tie cable guides for the rear brake. Darren made others to the frame, but I soon noticed they were spot on and should work perfectly, so actually there’s nothing to complain!

    As said, I didn’t saw pictures of the rear stays. Having drawn the shape of the tubes myself and carefully measuring all the parts that could/might interfere with these tubes, it was good to see it actually all worked out as planned. The curves I drew where closely matched and made a very solid and clean impression. Im glad this last hurdle turned out just as planned as well. I designed the chainstays such that they didn’t need to be crimped for either tire or chainring clearance. And as with all tubes in this frame 100% round, no ovalizing or whatever. Too bad the company that we used to make these tubes took so long to get them made. Darren had the front traingle already completed for like 3 weeks or so.

    Nice to see what a framebuilder like Darren keeps track of during a built. He had a complete file with all my emails, pictures and reference materials I sent hime for this built. Aside he also had numerous sketches of each tube transaction where welding took place. Little notes to how he tacked the tubes and needed to adjust his welding procedure to keep the frame aligned during the first and second pass weld. This way he has a complete fingerprint of the frame and its specific caracteristics during the build.

    Every single detail came out as planned and yes, this incorporates even the smallest, perhaps useless details. I drew out every single detail on this frame and Darren build the frame exactly as I wanted it.

    Right, we still have two things to do;

    - mounting the head tube badge I made myself out of stainless steel onto the frame:








    - deburr the BB shell so the PhilWood EBB would fit perfectly:




    Finally its a 100% completed frame, ready to be build for the Milan Bike Show which would be 2 days later during the weekend. I just had to have a picture of this ‘at last!’ moment… and where better than straight out of the olive garden at the back of Darren’s workshop with on the background Castiglion Fiorentino in the Tuscane hills:




    My bike, Darren’s personal 29er (also equipped with my headbadge), a complete road bike, road frame and a mtb frame would be featured at Darren’s booth at the Milan Bike Show (www.eicma.it) held from 15 till 18 September. For Ruben and myself the task to build up my Sser, prefferable direct 100% rideable ofcourse. It got darker and darker and with fire fly’s, mantii and a nice moonshine keeping us company, we steadily proceded to make it into a complete bike. It didn’t took us long, but the brake’s turned out to be a terrible problem. For some reason the inner and outer cables didn’t work well with the DiaCompe aero levers. I had to drill out and modify the levers and yet still we didn’t get them to work properly. At midnight we decided to leave it this way for now and look into it when we’d be home after the show.

    Well, some pictures;








    The bike was finished at around 0.30hr, but the brakes didn’t work great. Still we decided to give it out hand to Darren and head towards bed. Next morning Darren already left at 4 o’clock, without sleep, to Milan. We left that same morning at a more desent time, back to our rented appartment in Switzerland to come back to Milan monday the 18th to pick up the bike at the show to take it home.






    At around 5 o’clock the show was closing down, time to take the bike home. Darren detached the bike from its stand and couldn’t resist, although it only had one pedal and we took of the saddle (borrowed for the show from Selle Italia), making a small ride through the shows hall. ‘Now its officially passed the quality control and you can it home with you’. The many nights without sleep made this Texas guy pretty blurry, but he still was focussed enough to make practicle jokes and give us a good laugh and great time at the show. Finally we shook hands and took the bike back with us.

    Resumé; from begin May this year till that very day I spent quite some time on this project, drawing, thinking, emailing, phonecalling etc and its pretty ‘weird’ to finally have something completed that is a direct copy of that what I had in mind. Despite the cost made for this project and the trip to get it here, its worth everything and every effort we took and I can look back at a wonderfull collaboration with a fine crafstman who is very passionate about what he does. We came back with a lot of good memories and this trip will long stay in my mind as being very fun, educational and overall inspiring event.


    Spec list:

    Fork: 1 1/8" LeCadre rigid fork made out of Columbus CrMo tubing, prouldy made in Holland
    Stem: Custom-made Rick Hunter (www.huntercycles.com), fillet brazed CrMo 1 1/8" quill-type stem, hopefully soon to be swopped out for a genuine Goosneck stem.
    Handlebars: Original WTB Dirt Drop bar
    Headset: Chris King 1 1/8" 2Nut
    Brake levers: DiaCompe for V-brakes
    Brakes: Avid BB7 mechanical, Ø160mm front and rear.
    Hubs: PhilWood KissOff SLR
    Spokes: DT Competition 2.0-1.8 with brass nipples
    Freewheel: White Industries Eno, 18t
    Cranks: White Industries ENO, 175 mm
    Chainring: Boone Ti, 36t for White Ind. Eno crank
    Chain: Sram PC99 met PowerLink
    BB: PhilWood Ti, 68x123mm
    Pedalls: Time Atac
    Seatpost: Crisp 3al/2.5v Ti, Ø30.9mm specifically made for this frame
    Seatpost clamp: Hope Ø34.9mm
    Saddle: Fizik Aliante Carbon/Ti
    Tires: Sworks FastTrak 2.00"






    Nicely executed; appears simple and perhaps it is. Either way, sleek and tight without useless forms and bends, all round tubes:







    Some detail shots:

    BB shell with the set screws on the back;




    I insisted on Breezer-style dropouts and to give them a clean look I wanted them to be more ‘inside’ the stays, rather than put on the ‘back’ of them, sticking out. Its pretty tricky to weld along a thin edge as on these dropouts, without having the edge melt by the heat. Darren is true artist:







    https://i7.photobucket.com/albums/y2...cles/32310.jpg

    https://i7.photobucket.com/albums/y2...cles/32313.jpg

    https://i7.photobucket.com/albums/y2...cles/32314.jpg

    https://i7.photobucket.com/albums/y2...cles/32316.jpg

    https://i7.photobucket.com/albums/y2...cles/32322.jpg


    I can go on for hours about all the numerous small details that I wanted in this frame. It turned out to be a direct copy of the picture I had in mind and it all seemed to work as well in the complete setup.


    Sono molto contento!
    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  34. #34
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    That looks amazing Jeroen well done!

  35. #35
    those are Rollercams...
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    All I can say is....


    WOW

    Truly a wealth of useless information.


    http://blackdogadventureteam.blogspot.com/

  36. #36
    used to be uno-speedo....
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    A work of art.

  37. #37
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    Great write up, Jeroen! That's a sweet looking machine you got yourself there. Local pick-up in Milan ain't bad either. Now post some really dirty pictures for us already!

  38. #38
    Holy Chromoly!!
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    Well, this weekend was completely devoted to break-in the Sser. Saturday morning I left early to ride my favorite trails, which are a solid hour car drive from my place. The 55 kilometer loop has everything you can imagine, from flat straight sections, to winding singletracks and moderate short climbs. A reall great trail system for singlespeeding.

    The whole experience was something unique. The seating position on the bike comes pretty close already to what I thoughed would be ideal based upon my previously used Breeezer setup as a singlespeed with Dirt Drops as well. The saddle should be moved around a bit to get it 100% dailed in.

    De bike steer relatively ‘easy’ and is pretty agile, without becoming too sketchy. In loose sand the bike remains very controlable and with a little bit of weight shifting you can tweak it around tuff corners. When going down and picking up speed the bike remains lovely stable and feels pretty balanced. Overall not a bike of extremes in one direction, pretty solidly nested between the geo’s that really work. Its predictable… without weird kicks.

    The steel fork is pretty stiff, thats something that does spring out into attention when riding the bike. I have other steel rigids that have more ‘give’. The tall titanium seatpost with its 30.9 mm diameter seems to be perfectly right oposed a thinner 27.2 mm post with the same lenght. This one takes off just enough of the sharpness on the rough sections, without getting the felling of having an undamped Thudbuster seatpost. Imagine yourself riding a path thats completely stirred up by horses. Its hard to keep the pace up since your bouncing all over the place. Well, on sections like this, a long ti seatpost and in my case the pretty flat laying rear end has more than enough ‘give’ to give the impression you’re riding with pretty low pressure, big volume tires. It takes just enough off of the sharpness, which is what I wanted and why I wanted to do this concept with this material.

    Basically I can cut it pretty short; that what I designed the bike to do, what I had in mind, it actually does. Pretty weird to actually find nothing ‘big’ that’s not as I wanted it. Torsionall stiffness is good, the bike feels solid and each pedal stroke is directly put into motion of the rear wheel. Yet the compact frame has enough ‘give’ as I wanted it, that became clear pretty soon down the trail. I really didn’t expect it to come this close to my expectations!

    I have to admit that Im pretty relieved that I didn’t find ‘anything’ that I wouldn’t like or would have done differently. Im pretty sure this will stay that way. Perhaps the fork will be something to reconsider, but the frame and the overall concept turned out 100% as the picture I had in my head.

    Pic shot saturday;



    Sono molto contento! (Im very pleased! )
    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  39. #39
    Holy Chromoly!!
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    These pics where taken today by my good friend Coen de Jongh, while we where riding around some fun, technical trails, where he was testriding a 29er for our website (www.dirty-pages.net).









    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  40. #40
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    that is a beautiful piece of work. i love the disc tab...very sleek.

  41. #41
    local trails rider
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    Simply beautiful.

  42. #42
    local trails rider
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    Just wondering...
    I have been browsing some custom builders' sites and also taken a look at what they charge for a frame. Is Darren Crisp in the same ballpark costwise, as people like Strong and Kish?

    Somewhere, I spotted Darren Crisp mentioning that he is pretty busy building frames right now. I am not surprised.

  43. #43
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    i have had a hankering for the potts/cunningham designs for years and that pushes all the right buttons! good stuff, enjoy.

  44. #44
    Holy Chromoly!!
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    Quote Originally Posted by perttime
    Just wondering...
    I have been browsing some custom builders' sites and also taken a look at what they charge for a frame. Is Darren Crisp in the same ballpark costwise, as people like Strong and Kish?

    Somewhere, I spotted Darren Crisp mentioning that he is pretty busy building frames right now. I am not surprised.

    Yep, Darren is a busy man right now and seeing the time he spents on customer-relations its not hard to imagine that even without a Moots-esk output he's a busy fellah.

    All I can say is that he's a great guy to deal with! The fact he lives in Europe was a big plus for me, since I wanted to pick up the frame in person and living in the same time zone makes making phonecalls a lot easier as well. Pricing? Seeing what others ask and what you'll get, I think Darren has a very, very competative pricing on his work!
    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  45. #45
    local trails rider
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    Quote Originally Posted by Jeroen
    Additional design spec's;
    ...
    -straight rear end, no s-bends, just straight tubes, like on a Phoenix frame
    -all, I repeat, all round tubes.
    The straight tubes look really ... neat? ... cool? ... different? ... simple?
    If I wanted to do that, but with space for bigger tyres, do you think I would run into difficulties with kicking the chainstays or other clearance issues? (not that I have any loose €€€ right now but one has to dream)

  46. #46
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    whoa

    Quote Originally Posted by Jeroen
    Tube specs:

    Downtube: 38.1mm
    Toptube: 34.9mm
    Seattube: 34.9mm

    The seattube is reinforced with a Paragon seattube insert, to accomodate the 30.9mm seatpost we will make for this frame. The tall extension of the seatpost will stress this area quite a lot, so the insert is used to reinforce the whole area around the seattube/toptube/seatstay junction.


    WTF is this post all about??? #$%?!

    F! That is f'ing amazing craftmanship! I've never heard of this guy, Crisp. Italian small builder? Hey man, major props. Dude makes his own seatpost! You gotta give it up for framebuilders that make their own components.

    Hey, while I got you. What diam is the headtube? Just curious.

  47. #47
    Holy Chromoly!!
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    Quote Originally Posted by perttime
    The straight tubes look really ... neat? ... cool? ... different? ... simple?
    If I wanted to do that, but with space for bigger tyres, do you think I would run into difficulties with kicking the chainstays or other clearance issues? (not that I have any loose €€€ right now but one has to dream)

    Perttime,

    The seatstays won't be an issue. Have a look at the pic below. I have 82mms of clearance around the tire's top. Bare also in mind that I run Sworks 2.00" FastTrak tires, which are high. The clearance still remains massive.

    The chainstays might be more tricky. I spent the better part of to nights drawing several curves to accomplish a nice bend and enough clearance for both the chainring and the tire. Depending on your chainring/crank setup this could get you into trouble. The clearance on the chainstays is less than the clearance of the seatstays, cause I didn't want the tubes to be crimped near the chainring/tire region. The Sworks tire has still enough clearance and was within my set tolerance I had to incorporate in my drawings. With gears you coulnd't get it down without crimping/ovalizing the tubes.


    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  48. #48
    Holy Chromoly!!
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    Quote Originally Posted by barber
    WTF is this post all about??? #$%?!

    F! That is f'ing amazing craftmanship! I've never heard of this guy, Crisp. Italian small builder? Hey man, major props. Dude makes his own seatpost! You gotta give it up for framebuilders that make their own components.

    Hey, while I got you. What diam is the headtube? Just curious.

    Diameter? Headset is a 1 1/8". Outside tube diameter is 38.1 mms.

    Darren Crisp is actually American, living in Italy for quite some years. He makes forks, stems and seatposts as you please. Im working on some addition stuff for this bike as well, that I want Darren to make (fork).
    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  49. #49
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    What is the rise and angle on that stem ? just curious .

  50. #50
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    Coolest SS project I've seen!

    I just built up my first singlespeed from a bunch of old parts, and spending about $100 on the necessary bits to convert my old hardtail. Having just gone on my first SS expedition I had a great time, though it hurt like a S.O.B climbing up Mandeville Canyon with a 32:18. My leftovers SS looks like total crap compared to this custom Ti beauty. Man I would love to be involved in the construction of my very own frame, but don't have skills, time or the dollars to make it happen.

    Congrats on designing and building the coolest SS I've ever seen.

    Derek

  51. #51
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    Best post on MTBR in the past year!
    Follow me on Instagram for up to date build pics -Brad4130
    Nem-Pro store
    Nem-Pro Blog

  52. #52
    Holy Chromoly!!
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    A friend of mine wanted to shoot pictures of the bike in a studio. Darren Crisp asked me more or less the same to have some proper pics for his website of this bike. Here is the result of Erik Boschman's work, shot late september in a photostudio in Amsterdam.





    https://i7.photobucket.com/albums/y2...rispTI-032.jpg

    https://i7.photobucket.com/albums/y2...spTI-002-4.jpg

    https://i7.photobucket.com/albums/y2...rispTI-051.jpg

    https://i7.photobucket.com/albums/y2...rispTI-052.jpg

    https://i7.photobucket.com/albums/y2...rispTI-062.jpg

    https://i7.photobucket.com/albums/y2...rispTI-073.jpg

    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  53. #53
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    Amazing. Just plain amazing.

  54. #54
    used to be uno-speedo....
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    Simply amazing.

  55. #55
    Goin' Down ain't bad!!!
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    It truly is a work of Art!!!

    Not only Simply Amazing...it's also Simply Gorgeous, Simply Beautiful and just plain Simple. Bravo Jeroen....you have truly captured the "Bike as Art"!!!!
    Dug-da-Goat

    "Oh momma, could this really be the end? To be stuck outside of Mojo with the High Side Blues again!!!"

  56. #56
    local trails rider
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    I just had to dig up this thread again.
    The design and the execution keep amazing me.

  57. #57
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    awesome bike!

  58. #58
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    Updates on the gooseneck stem

    Jeroen, did you finally get a LD stem built? Just curious.

  59. #59
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    Too beautiful for words.....should have sent...a poet!

  60. #60
    Holy Chromoly!!
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    Quote Originally Posted by joeadnan
    Jeroen, did you finally get a LD stem built? Just curious.

    Nice to see people keep track of my bike. Sadly no LD stem has seen the daylight for this bike so far. During busy schedules Ive been working on it off and on in the past 2 years that have past. We (a friended framebuilder) are still working on getting a tube bend to our specs, but unfortunatly progress is slow and due the overly filled agenda things don't go very fast.

    Don't worry, it will come though... one day...

    In the meantime Im awaiting a new fork for this bike. A bit lighter than the current one and most important one thats, if all goes well, is a bit more forgiving. Its build by the guy that inspired me to design the bike this way. You know, that guy that build the steel and Ti Phoenix, Steve P.
    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  61. #61
    'Calm Down'
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    re: LD Stem - You could have Rody build you one. groovycycleworks.com He sets them up to run with a standard aheadset.

    Mmmmm, a Type II will be sweet on your bike. Please post some photos of the new fork/bike when you get it together.

    jw


    Quote Originally Posted by Jeroen
    Nice to see people keep track of my bike. Sadly no LD stem has seen the daylight for this bike so far. During busy schedules Ive been working on it off and on in the past 2 years that have past. We (a friended framebuilder) are still working on getting a tube bend to our specs, but unfortunatly progress is slow and due the overly filled agenda things don't go very fast.

    Don't worry, it will come though... one day...

    In the meantime Im awaiting a new fork for this bike. A bit lighter than the current one and most important one thats, if all goes well, is a bit more forgiving. Its build by the guy that inspired me to design the bike this way. You know, that guy that build the steel and Ti Phoenix, Steve P.
    Attached Images Attached Images
    -

    "And single-speeding 29ers are mountain biking's equivalent of Scientologists..." - Captain Dondo

  62. #62
    Holy Chromoly!!
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    Done... done at last.




    Now features the long awaited LD stem (courtesy of Rody [email protected] Cycles) and the Type II fork from Steve P.
    No, I am not retro.... I am way ahead of my time...

    "...though a lot of marijuana was smoked in the early days of mountain bike development, not all of the riders were potsmoking hippies... " Frank J. Berto

    Who's that f#$king Doug Lexington?!

  63. #63
    local trails rider
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    Uhhh, time to sell my wife, I think...


  64. #64
    'Calm Down'
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    Wow, that came out great!

    More photos please.

    jw


    Quote Originally Posted by Jeroen
    Done... done at last.

    Now features the long awaited LD stem (courtesy of Rody [email protected] Cycles) and the Type II fork from Steve P.
    -

    "And single-speeding 29ers are mountain biking's equivalent of Scientologists..." - Captain Dondo

  65. #65
    V-Shaped Rut
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    Very nice. Its good to see something as far away from off the shelf as possible. And Ti as well, awesome!

  66. #66
    Stokeless Asshat
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    One of the best threads in MTBR history.
    Nice bike too .
    Zip ties? Not on my bike!

    Want:
    650B rims or wheel set. 80's vintage 32 or 36 x 135mm

  67. #67
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    This bike has been stolen from member Jeroen - a friend of mine. Please keep your eyes out for it, bike community. It's currently in the Netherlands. Let Jeroen know if it pops up on eBay or see it around at some point. It's unique and hopefully will pop up soon.

  68. #68
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    Quote Originally Posted by jeff View Post
    One of the best threads in MTBR history.
    Nice bike too .
    Quote Originally Posted by girlonbike View Post
    This bike has been stolen from member Jeroen - a friend of mine. Please keep your eyes out for it, bike community. It's currently in the Netherlands. Let Jeroen know if it pops up on eBay or see it around at some point. It's unique and hopefully will pop up soon.
    this sucks. st00pit thieves.

  69. #69
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    The scumbags that stole it probably dont even know what they have. Hope it gets returned.

  70. #70
    local trails rider
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    A couple of other bikes were taken at the same time:

    Stolen bikes

    "it IS possible that you are faster or slower than anybody else who is having at least as much if not more or less fun"

  71. #71
    gobsmacked Moderator
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    Quote Originally Posted by perttime View Post
    A couple of other bikes were taken at the same time:

    Stolen bikes
    Yep. That's Jeroen's webpage. Thanks for the link. That is indeed the best way of contacting him. That Phoenix of his is my personal favorite but the Crisp is the one with his hands all over it.

  72. #72
    local trails rider
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    "it IS possible that you are faster or slower than anybody else who is having at least as much if not more or less fun"

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