Page 39 of 44 FirstFirst ... 29 35 36 37 38 39 40 41 42 43 ... LastLast
Results 951 to 975 of 1089
  1. #951
    mtbr member
    Reputation: mestapho's Avatar
    Join Date
    Sep 2011
    Posts
    1,719
    Quote Originally Posted by Salespunk View Post
    I broke a spoke racing this weekend on my Derby's. Shockingly rim was still and stayed true for the rest of the day through my race and practice runs. These were full DH (Trestle DH/Rainmaker/Mountain Goat at Winter Park) courses run on trail bikes and definitely a test of every component on the bike especially the rims. Over the course of the weekend they were bashed through rock gardens at mach chicken. End result, lots of new love taps and scratches to remember the weekend by and I love these rims more every day.

    Anyone comment on them?

    Over the past two months people are starting to know on site that they are Derby's. At first people just assumed they were "those Chinese rims"
    they'd heard about. The guys at Ashland Mountain Adventures, a couple of random guys on my local trails and one of the local
    Pro's asked if they were Derby's.

  2. #952
    mtbr member
    Reputation: doismellbacon's Avatar
    Join Date
    Sep 2007
    Posts
    2,090
    Yep, I've broken 2 adjacent/same side spokes on my front wheel, and it came out of true by a whopping 2-3mm, and was totally rideable and imperceptible.

  3. #953
    mtbr member
    Reputation: vice grips's Avatar
    Join Date
    Dec 2012
    Posts
    778
    Nice one SP! What layup rims do you have?
    Once you go slack, you never go back!

  4. #954
    mtbr member
    Reputation: moshemark's Avatar
    Join Date
    Mar 2007
    Posts
    94
    deleted

  5. #955
    mtbr member
    Reputation: moshemark's Avatar
    Join Date
    Mar 2007
    Posts
    94

    I am not handy; How difficult is it to mount tires on Derby Rims?

    Until now, I have used Mavic 819 UST rims; I am not very handy and have weak hands, so I am able to mount UST tires with difficulty. How much harder will it be to mount tires (tubeless ready, UST or regular) on Derby Rims? I am willing to limit myself to tires which are easy to mount.

    Also, please describe how to mount tires on Derby Rims with a floor pump. Does anyone have a video of this?

    (Sorry, I can't figure out how not to make this a subthread of the previous thread.)

    Mark
    Last edited by moshemark; 08-01-2014 at 07:05 AM. Reason: mistake

  6. #956
    mtbr member
    Reputation: moshemark's Avatar
    Join Date
    Mar 2007
    Posts
    94
    ignore this; posted by mistake

  7. #957
    mtbr member
    Reputation:
    Join Date
    May 2009
    Posts
    1
    Hi. I'm enjoying these rings since January. I would protect them aesthetically

    Could you recommend me some vinyl?

    Thanks in advance

  8. #958
    Unit 91
    Reputation: TheProphet's Avatar
    Join Date
    May 2005
    Posts
    1,226
    Quote Originally Posted by moshemark View Post
    Until now, I have used Mavic 819 UST rims; I am not very handy and have weak hands, so I am able to mount UST tires with difficulty. How much harder will it be to mount tires (tubeless ready, UST or regular) on Derby Rims? I am willing to limit myself to tires which are easy to mount.

    Also, please describe how to mount tires on Derby Rims with a floor pump. Does anyone have a video of this?

    (Sorry, I can't figure out how not to make this a subthread of the previous thread.)

    Mark
    I have mounted two sets of Maxxis EXO Tubeless Ready tires to Derby rims (one pair on 29 HD rims and the other set on 27.5 HD rims) and each had its own challenges. With the 29er rims, I broke one Pedro's tire lever, but had an easier time getting the rest of the bead on after that. With the 27.5 rims, I broke one Pedro's tire lever, but had a much harder time getting the rest of the bead on. This could be because they are 5mm wider than the 29er rims. I would recommend using the aid of mild soap and water on the bead or some other type of recommended lubricant and taking your time. I actually had to lay mine on the ground and put my foot on the bead to keep it from unseating.

    As far as mounting the tires with a floor pump, what they mean is airing your tires up with the floor pump to seat the bead rather than using a air compressor. Most tubeless tires/rim combos need the aid of quick burst of air from a compressor to get the bead set, but since the bead to rim is so tight with the Derbys, you can air them up to seat the bead with a floor pump because they already have a tight seal.
    Bikes

  9. #959
    mtbr member
    Reputation: mestapho's Avatar
    Join Date
    Sep 2011
    Posts
    1,719

    650b x 40mm carbon fiber DERBY RIMS Grand Opening

    My experience is opposite of prophets.
    I find tires to be fairly easy to mount, but hard to seat with a floor pump.

    The secret for mounting is to make sure that the bead of the first side is entirely in the center channel and against the wall of the channel on the same side as the other bead. I've put maybe 7 different tires on my Derby's and haven't had to use levers.
    If you have weak hands, just invest in a small inexpensive compressor. It'll make your life much easier. Otherwise, just seat the beads with a tube then undo one side of the bead and pull the tube. With one side of the bead set the other side should easily reseat with a floor pump. I had to do this prior to buying a compressor. No need to leave the tube in overnight either.

  10. #960
    mtbr member
    Reputation:
    Join Date
    Jul 2014
    Posts
    16
    Quote Originally Posted by will 6.6 View Post
    Got my wheels, King with CX Rays all black, massive thanks to Ray for all the emails and updates, and a special thanks to David Hunt @ dcrwheels for building them up.
    Just need to get my bike now and start my dream build!! Can't wait to give them a good thrashing.
    Hi.

    I have derby + Chris King ISO 15x100 and 12x142 and I want to buy 14mm nipples and Sapim CX Ray spokes.

    I used three calculators spokes and the calculators indicate three different length of spokes

    What spoke length you used?

    Thank you
    Last edited by Uzzy; 08-02-2014 at 12:02 PM. Reason: text

  11. #961
    mtbr member
    Reputation:
    Join Date
    Jul 2014
    Posts
    16
    Sorry
    Last edited by Uzzy; 08-03-2014 at 03:38 PM. Reason: Sorry

  12. #962
    mtbr member
    Reputation:
    Join Date
    Jul 2014
    Posts
    16
    Can someone help me choose the spokes length I need?

    ERD 544 mm Derby rims 27.5 + Chris King ISO 15x100 and 12x142

    Election: 14 mm nipples + Sapim CX RAY

    Thank you

    Three different lengths.....

    261 mm, 262 mm, 262 mm, 261 mm
    261 mm, 263 mm, 263 mm, 261 mm
    263 mm, 264 mm, 265 mm, 263 mm
    ...

    HUBS SPECS
    650b x 40mm carbon fiber DERBY RIMS Grand Opening-chris-king-iso-specs.jpg

    DT CALCULATOR
    Welcome

    650b x 40mm carbon fiber DERBY RIMS Grand Opening-dt-fron-rear.jpg

    WHEELPRO CALCULATOR
    Spoke length calculator for wheel building

    650b x 40mm carbon fiber DERBY RIMS Grand Opening-wheelpro-front.jpg

    650b x 40mm carbon fiber DERBY RIMS Grand Opening-wheelpro-rear.jpg

    SAPIM CALCULATOR
    Spoke calculator | Sapim

    650b x 40mm carbon fiber DERBY RIMS Grand Opening-sapim-front.jpg

    650b x 40mm carbon fiber DERBY RIMS Grand Opening-sapim-rear.jpg
    Last edited by Uzzy; 08-03-2014 at 03:57 PM. Reason: TEXT

  13. #963
    mtbr member
    Reputation: doismellbacon's Avatar
    Join Date
    Sep 2007
    Posts
    2,090
    Quote Originally Posted by mestapho View Post
    My experience is opposite of prophets.
    I find tires to be fairly easy to mount, but hard to seat with a floor pump.

    The secret for mounting is to make sure that the bead of the first side is entirely in the center channel and against the wall of the channel on the same side as the other bead. I've put maybe 7 different tires on my Derby's and haven't had to use levers.
    If you have weak hands, just invest in a small inexpensive compressor. It'll make your life much easier. Otherwise, just seat the beads with a tube then undo one side of the bead and pull the tube. With one side of the bead set the other side should easily reseat with a floor pump. I had to do this prior to buying a compressor. No need to leave the tube in overnight either.
    Ditto. Most tires have been very easy to mount by hand...just make sure the bead is in the center channel...but then they're hard to impossible to inflate without using a compressor or burning through CO2 cartridges. Minion DHF tubeless ready WAS the only one I was able to inflate with a floor pump, but only after it had been mounted for a while.
    Now I'm trying a Geax Goma TNT and it's the opposite..hard as hell to mount, but then inflates almost as easy as a tube tire does with a floorpump.
    Pick your poison.

  14. #964
    mtbr member
    Reputation: mestapho's Avatar
    Join Date
    Sep 2011
    Posts
    1,719
    Quote Originally Posted by Uzzy View Post
    Can someone help me choose the spokes length I need?

    ERD 544 mm Derby rims 27.5 + Chris King ISO 15x100 and 12x142

    Election: 14 mm nipples + Sapim CX RAY

    Thank you

    Three different lengths.....

    261 mm, 262 mm, 262 mm, 261 mm
    261 mm, 263 mm, 263 mm, 261 mm
    263 mm, 264 mm, 265 mm, 263 mm
    ...

    HUBS SPECS
    Click image for larger version. 

Name:	chris king iso specs.jpg 
Views:	116 
Size:	47.1 KB 
ID:	912977

    DT CALCULATOR
    Welcome

    Click image for larger version. 

Name:	DT FRON AND REAR.JPG 
Views:	136 
Size:	90.9 KB 
ID:	912980

    WHEELPRO CALCULATOR
    Spoke length calculator for wheel building

    Click image for larger version. 

Name:	WHEELPRO FRONT.JPG 
Views:	110 
Size:	67.1 KB 
ID:	912981

    Click image for larger version. 

Name:	WHEELPRO REAR.JPG 
Views:	113 
Size:	68.5 KB 
ID:	912982

    SAPIM CALCULATOR
    Spoke calculator | Sapim

    Click image for larger version. 

Name:	SAPIM FRONT.jpg 
Views:	111 
Size:	47.4 KB 
ID:	912983

    Click image for larger version. 

Name:	SAPIM REAR.jpg 
Views:	117 
Size:	49.5 KB 
ID:	912984
    I've used the DT calculator for several builds now and it has been on the money.

    Looking at those numbers, I'd just go 262 all the way around.

  15. #965
    mtbr member
    Reputation: Mr. 68 Hundred's Avatar
    Join Date
    Feb 2011
    Posts
    406
    Quote Originally Posted by mestapho View Post
    I've used the DT calculator for several builds now and it has been on the money.

    Looking at those numbers, I'd just go 262 all the way around.
    Ditto on the DT calculator, it's come through every time for me. I've fudged the spoke length before to use same length all around (such as the 262 scenario) and I've done the 'correct' length. Every wheel has built up fine but I've never regretted buying the calculated length rather than the fudged length.
    Proponent for an Evidence Driven Life.
    Occupation: Disposable gene transfer machine

  16. #966
    mtbr member
    Reputation:
    Join Date
    Jul 2014
    Posts
    16
    I think I now understand what happens

    The DT alculator ...............................................ask s mm nipples
    The WHEELPRO calculator ...........................asks mm nipples
    The SAPIM calculator ......................................doesn't ask mm nipples
    The PROWHEELBUILDER calculator ..........doesn't ask mm nipples

    Derby + CK ISO + Sapim CX Ray:

    DT (12 mm nipples)
    262.00 mm, 263.00 mm, 263.30 mm 261.90 mm

    WHEELPRO (12mm nipples)
    263.10 mm, 261.60 mm, 261.8 mm, 262.90 mm

    SAPIM (no nipples)
    263.00 mm, 264.00 mm, 265.00 mm, 263.00 mm

    PROWHEELBUILDER (no nipples)
    263.30 mm, 264.20 mm, 264.60 mm, 263.20 mm

    Is it necessary that the spoke reaches the end of the head nipple?

    Which is better? short spoke? Long spoke?

    What length would you choose?

    12 mm or 14 mm nipples?


    Sorry....it's the first time

  17. #967
    4 Niners
    Reputation:
    Join Date
    Dec 2008
    Posts
    2,007
    All things equal, I round down.
    Full rigid SS, Hardtail SS, Hardtail Geared, Full Suspension Geared.

  18. #968
    Let's ride SuperModerator
    Reputation: rensho's Avatar
    Join Date
    Mar 2004
    Posts
    6,741
    Be careful rounding down on spokes. The threads NEED to go into the head of the nipple. If it is only in the stem, you'll break off the nipple head on rides, soon.

  19. #969
    4 Niners
    Reputation:
    Join Date
    Dec 2008
    Posts
    2,007
    True, but in a built wheel the spokes are generally yielded a small amount at the flange end by stress relieving. Also some rims yield a small amount around the nipple seats. I only round down to the next closest size so generally in that case the end of the spoke will be about even with the top of the nipple head [the part that is seated on the rim]. Also, I once had the opposite problem before I started rounding down. I built a wheel and after about a year and a half, I was truing it, but I ran out of thread on one spoke because of the spokes wearing in on the flange seats and yielding at the elbows and probably the rim yielding, etc. So I rebuilt the wheel with new shorter spokes on that entire side.
    Full rigid SS, Hardtail SS, Hardtail Geared, Full Suspension Geared.

  20. #970
    mtbr member
    Reputation:
    Join Date
    Jul 2014
    Posts
    16
    I found an ERD of 542 mm from a post in all pages back (27,5 rim)


    But Derby website.....ERD = 544 mm

    650b x 40mm carbon fiber DERBY RIMS Grand Opening-2014-08-06-002733_1440x900_scrot.jpg


    What I use?
    Last edited by Uzzy; 08-05-2014 at 04:37 PM. Reason: text

  21. #971
    mtbr member
    Reputation:
    Join Date
    Feb 2007
    Posts
    34
    Guys, had a few private messages, but i can't reply? if you contact David Hunt @ dcrwheels, I'm sure he could help out, or has the info on his website.
    cheers

  22. #972
    mtbr member
    Reputation:
    Join Date
    Jul 2014
    Posts
    16
    To will 6.6

    when you go to a bike shop to build your wheels dependent (dcrwheels) , usually gives you a paper with the lengths of the spokes and tension.

    Do you have your paper?

    Do you know the length of your spokes?

    I have derby + Chris King ISO 15x100 and 12x142 and I want to buy 14mm nipples and Sapim CX Ray spokes.

  23. #973
    mtbr member
    Reputation: doismellbacon's Avatar
    Join Date
    Sep 2007
    Posts
    2,090
    Quote Originally Posted by Uzzy View Post
    I found an ERD of 542 mm from a post in all pages back (27,5 rim)


    But Derby website.....ERD = 544 mm

    Click image for larger version. 

Name:	2014-08-06-002733_1440x900_scrot.jpg 
Views:	135 
Size:	97.3 KB 
ID:	913567


    What I use?
    If you've purchased your rims recently then definitely use 544. When I built my first 2 rims from the first production run last year the site was saying 542. The one I built up last week I used the current 544 #. Both builds went great. I don't know if anything really changed about the rims' ERD, but Ray's numbers have been good in both cases.

  24. #974
    mtbr member
    Reputation:
    Join Date
    Jul 2014
    Posts
    16
    OK.

    Thank you very much.

  25. #975
    mtbr member
    Reputation: rscecil007's Avatar
    Join Date
    Apr 2007
    Posts
    2,209
    Folks,

    I'm slowing reading my way through this long thread, tons of great info here. I'm about ready to pull the trigger on a set of these. I'm about 205 or so geared up, and ride fairly agressively at times (jumps, doubles, drops, blah blah.)

    I was thinking about building them up on a set of Kings I have, with brass nipples and Sapim Laser spokes. Does that sound like a solid build, or anyone feel I should go a different route? I'd like to do the X-rays, but from what I read the weight difference is negligible with the Lasers, although the price is about 3x extra per spoke.

    Thanks for any thoughts/advice.
    If jackasses could fly this place would be an airport.

Page 39 of 44 FirstFirst ... 29 35 36 37 38 39 40 41 42 43 ... LastLast

Similar Threads

  1. 29 x 35mm carbon fiber DERBY RIMS Grand Opening
    By derby in forum 29er Components
    Replies: 500
    Last Post: 21 Hours Ago, 11:02 AM
  2. Stans Carbon Fiber Rims?
    By HAL 9000 in forum Wheels and Tires
    Replies: 41
    Last Post: 09-03-2013, 09:58 AM
  3. Carbon Fiber Rims
    By Lars_D in forum Fat Bikes
    Replies: 57
    Last Post: 07-18-2013, 08:09 AM
  4. Industry Nine Wheels with DT Swiss XRC 330 Carbon Fiber Rims
    By iClique in forum Custom Builders & Other Manufacturers
    Replies: 23
    Last Post: 11-03-2011, 04:14 PM
  5. Replies: 75
    Last Post: 01-13-2011, 03:09 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •