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  1. #301
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    I'd love to see him build again. Talent!
    Zip ties? Not on my bike!

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

  2. #302
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    thought I should post these...

    My 1995 Pro Floater (frame only... hangin' on the wall of my office)

    My 1992 Pro Floater (with later upgraded swingarm)

    our "ride team" from 1995. Team Dirt Works Australia. For those that can't see the T-shirt at the back... it reads:
    Harder - Faster - Stronger - Fulfill your fantasies
    then on the back was a Mantis logo with the words "Mantis Pro Floater - the swweetest full suspension ride"...

    Don't miss the custom Mantis plates on the car.

    and... my ankle. The ink was done in 1993.

    Elvis.
    Attached Thumbnails Attached Thumbnails All things Mantis...-img_0018.jpg  

    All things Mantis...-_dsc0009.jpg  

    All things Mantis...-team-mantis-1995.jpg  

    All things Mantis...-m-ink.jpg  

    Last edited by Elvis @ Dirt Works; 12-07-2010 at 09:37 PM.

  3. #303
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    BB Service

    A Mantis tidbit I came across.
    Attached Thumbnails Attached Thumbnails All things Mantis...-rsz_dsc02270.jpg  

    No it never stops hurting, but if you keep at it you can go faster.

  4. #304
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    just recently sold this

    It wasn't my size but it was a cool jersey



  5. #305
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    Quote Originally Posted by crconsulting
    just recently sold this
    It wasn't my size but it was a cool jersey
    I still have mine. And while it's waaaayyy too small nowadays.

    I refuse to sell it.

    Elvis.

  6. #306
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    Quote Originally Posted by Elvis @ Dirt Works
    I still have mine. And while it's waaaayyy too small nowadays.

    I refuse to sell it.

    Elvis.
    It's a nice jersey.
    I might of kept it if I actually had a Mantis, But I'm kinda into the "other" Cunningham

  7. #307
    my dog's Frisbee launcher
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    Quote Originally Posted by modifier
    A Mantis tidbit I came across.

    Hey Modifier thanks for posting that ...though I guess i could always ask Richard
    Darwin was an Optimist

  8. #308
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    ...

  9. #309
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    Awesome. Frontal shot?
    undefined Absolutely must have: Black Machine Tech Zeroflex brake levers (the ones with the rotating leverage adjuster)

  10. #310
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  11. #311
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    Wow!
    purveyor of leftfield brands

    Pablo Picasso: "Good taste is the enemy of creativity"

  12. #312
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    Radical. How do those Progressive Brakes work? Are you using a Rotary Brake out back?
    undefined Absolutely must have: Black Machine Tech Zeroflex brake levers (the ones with the rotating leverage adjuster)

  13. #313
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    matching brakes. > v-brakes, < disk.


  14. #314
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    Cool thread...

  15. #315
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    Hi all..I am now the proud owner of a Mantis Pro Floater...the bike I wanted all thru the nineties but gave up on when suspensions developed and mantis went away. All the review and talk here has me sooo stoked to ride this thing but first it needs built. All I have are a frame and a fork. I need some info if someone dont mind too much. (Yes, I'll get photos soon). Its got a 1" headset so its an earlier one but it looks like the swingarm is newer. What I would like to know is what seatpost diameter to get and what front der diameter to get? TIA, just want to do some checking around to see what I parts I can get ahold of (period correct parts of course).

  16. #316
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    Pictures would be appreciated. Seatpost should be 26.8mm. Front derailleur should be 35mm top pull, unless there's a pully to use a bottom pull.
    Need: McMahon brake for roller cam mounts, Mountain Goat fork.

  17. #317
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    thanks for the info..seatpost fit fine, still working on front der. I'm attaching a pic if it will let me. I'm gathering components to build this thing upa nd ride it. Cant wiat to see how it feels, I've been waiting almost 20 years to ride one of these things.
    Attached Thumbnails Attached Thumbnails All things Mantis...-mantis-profloater-1.jpg  


  18. #318
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    Quote Originally Posted by syklystt View Post
    I've been waiting almost 20 years to ride one of these things.
    Nothing like scratching a 20 year long itch!
    -eric-

    http://www.rumpfy.com
    Wanted: NDS Suntour XC Pro Microdrive 175mm Crank Arm.

  19. #319
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    Mantis XCR proto

    I don't really understand if there are only 3 frames made by RC (actually there are 3 frameset in Italy). Raceware, the Italian dealer of Mantis in the hey days, says that about 50 frames were made.... There was an interesting article on MBA about the XCR proto, no way to find it?
    Attached Thumbnails Attached Thumbnails All things Mantis...-dscn3084-%5B50%25%5D.jpg  

    All things Mantis...-dscn3085-%5B50%25%5D.jpg  

    All things Mantis...-dscn3086-%5B50%25%5D.jpg  

    All things Mantis...-dscn3087-%5B50%25%5D.jpg  

    All things Mantis...-dscn3089-%5B50%25%5D.jpg  


  20. #320
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    Origin of the Species

    The father of all Maniti and the delivery room.
    Attached Thumbnails Attached Thumbnails All things Mantis...-rcshop2mtbr.jpg  

    "Yeah, Humboldt County is way the %#@* up there, but worth it!"

  21. #321
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    cool pic of a young RC.

    I think I have a pic somewhere on my desk of myself in 1994 just before Interbike, pressing bearings into pivots when I visited them in Orange County...

    I was even there when the 1st ever Screaming V (sample) was delivered.

    *sigh*

    Elvis.

  22. #322
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    Mantis Flying V

    Hello guys,

    Great topic this Mantis topic! Beautifull bikes you all have :-)
    I think this will be my second post, but I'm allready bussy for a long time with retro bikes and parts.

    I'm introducing something special here I think.
    A Mantis Flying V custom painted.
    Frame number is: VL181933 or VL181033.

    The original owner in the USA ordered this color because he loved his Tank Top in this color. So he sended it to Mantis an order the Mantis Flying V in this color.
    Brand new, NOS, superb condition, etc.
    So I had the chance to buy it and I took that chance. And I do not regret this :-)
    I hope to post a picture soon, as I need the 10 posts first :-)

    So now I have to build up this beautifull bike.
    I only need some parts, maybe you can help me with that?

    - Rock Shox Mag 21 (SL) steerer/crown, 1 inch, ahead.
    - Chris King 1 inch aheadset, silver or purple.
    - Answer Atac or Ringlé Zooka ahead, 1 inch, silver or purple.
    - Ringle, XTR M900 silver, Kalloy Chrome/silver, Use, Syncros titanium or whatever kind of brand Seatpost, 26.8mm, minimal 350mm long, silver or purple.

    I will post some pics of the proces building up the Mantis Flying V in the near future!

    Greetings, Dirk

  23. #323
    CBI 2L
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    Recent pickup, 1983 fillet brazed XCR with original biplane fork. Matching serial numbers. Needs a lot of work. Better pics sometime in the near future.

    All things Mantis...-dsc_0623-vi.jpg

  24. #324
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    Quote Originally Posted by SMRTIN View Post
    Recent pickup, 1983 fillet brazed XCR with original biplane fork. Matching serial numbers. Needs a lot of work. Better pics sometime in the near future.
    Great find!!

  25. #325
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    Nice Find!
    On the rear dropouts already the cantilever bosses!!!

  26. #326
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    That is a killer pickup. A fillet brazed XCR is one of the bikes high up on my wish list. Doesn't look like it needs that much work. I'd keep the light wear rather than repainting.

  27. #327
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    Thanks. Sadly this is probably the 2nd or 3rd paintjob, you can see the remnants of the original fuschia and flouro yellow Landshark paintjob on the fork steerer.

  28. #328
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    That's a keeper!

    Nice find.
    Seek: Koski Trailmaster. Breezer Series 2 or 3. Cunningham Racer.

  29. #329
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    Mantis XCR

    Not so special, but for me looks great...
    Sorry for the crappy photos inside my house, but in Italy it doesn't stop raining...
    Attached Thumbnails Attached Thumbnails All things Mantis...-imga0146_01.jpg  

    All things Mantis...-imga0147_01.jpg  

    All things Mantis...-imga0150_01.jpg  

    All things Mantis...-imga0135_01.jpg  

    All things Mantis...-imga0136_01.jpg  

    All things Mantis...-imga0137_01.jpg  

    All things Mantis...-imga0140_01.jpg  

    All things Mantis...-imga0142_01.jpg  

    All things Mantis...-imga0143_01.jpg  


  30. #330
    Suddenly feeling my age..
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    My '92 XCR-EC





    Wanted:

    Marzocchi Star Fork
    Nishiki Aliens

  31. #331
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    Cool!
    Certainly worth the big pictures.
    Seek: Koski Trailmaster. Breezer Series 2 or 3. Cunningham Racer.

  32. #332
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    WOW...2 very nice XCR's....thanks for sharing them!

  33. #333
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    Very very nice bike, but, how the Tioga revolver on press fit BB??

  34. #334
    Suddenly feeling my age..
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    Quote Originally Posted by alasa View Post
    Very very nice bike, but, how the Tioga revolver on press fit BB??
    Haha, the I.D. of the press-fit bearings is the same as the I.D of the Revolver BB bearings. I just had to make a custom spacer for each side of the crank/bearing interfaces. Pretty easy fit-up!
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  35. #335
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    Quote Originally Posted by Flying_V View Post
    Not so special, but for me looks great...
    Sorry for the crappy photos inside my house, but in Italy it doesn't stop raining...
    Wow this is really similar to my build when I got mine from CBO in...hmm..1990(?) Ringle skewers, Bullseye hubs though I had nukeproof on my Pro-floater, but mostly the color. I assume this is the deep purple? I should get mine repainted I suspect some day and put on the NOS stickers I have. Thanks for the flashback!
    Try this: HTFU

  36. #336
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    Cross chain fail. At least its not big/big.
    -eric-

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    Wanted: NDS Suntour XC Pro Microdrive 175mm Crank Arm.

  37. #337
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    Quote Originally Posted by rockcrusher View Post
    Wow this is really similar to my build when I got mine from CBO in...hmm..1990(?) Ringle skewers, Bullseye hubs though I had nukeproof on my Pro-floater, but mostly the color. I assume this is the deep purple? I should get mine repainted I suspect some day and put on the NOS stickers I have. Thanks for the flashback!
    Unfortunaly the frame has been repainted in blue colour. Thanks!

  38. #338
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    XRMATTAZ, who are you, I also did the Tuesday, Thursday and Saturday Chino Hills/ Anaheim Hills rides. I rode the Merlin ( sorry Richard C) Those were some great days back then, still some of my fondest memories on the bike. .........didn't realize your original posting date, 9 years ago until I posted........
    Last edited by Hurricane Jeff; 04-04-2013 at 05:41 AM.

  39. #339
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    NIce to see that bike built up. I am in the mood to get an XCR-EC again. Cool bikes.

  40. #340
    Suddenly feeling my age..
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    Quote Originally Posted by bushpig View Post
    NIce to see that bike built up. I am in the mood to get an XCR-EC again. Cool bikes.
    Cheers BP. If you happen to 'stumble' across a Valkyrie on your search, you know who to call.
    Wanted:

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  41. #341
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    For all "Mantis Experts" give a quick look to the thread of the "Flying V" painted (?) by Troy Lee, and give me some information to understand if it's a fake or not.
    Thanks

  42. #342
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    Quote Originally Posted by Rumpfy View Post
    Cross chain fail. At least its not big/big.
    'Thinks he knows it all' fail. That's an absurd comment. It's people like you... actually it's damn-near only you that drives people away from this site.

    The bike's a 'garage queen' as you 'hard-core types' so quaintly put it. Bikes should be stored with no derailleur spring tension & it was photographed exactly as it lives it's life.

    Didn't your Mother tell you that if you don't have anything good to say then not to say anything at all?
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  43. #343
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    Quote Originally Posted by Arran View Post
    Didn't your Mother tell you that if you don't have anything good to say then not to say anything at all?
    ...
    Somec is like the digital Zunow
    And this: http://www.youtube.com/watch?v=JD5h3y0a9AU

  44. #344
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    The blue XCR is superb--totally love it, green likewise. Very nice rides/or 'display bikes,' as the case may be.
    Somec is like the digital Zunow
    And this: http://www.youtube.com/watch?v=JD5h3y0a9AU

  45. #345
    Suddenly feeling my age..
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    Quote Originally Posted by yo-Nate-y View Post
    ...
    There's no irony in my statement. I'm sticking up for myself & all those that simply come on this site to share their projects & enjoy others. We don't need that kind of crap-talk polluting ths forum.
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  46. #346
    the new Gilbert Grape
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    Since we're on an XCR "roll" here's a pic of the non-elevated version. It's not quite as nice as the other two, and it's a repaint with the decals slightly misplaced. The gear selection is the gear that I was the last time I rode it on the trail. (I did wipe the frame with a rag to remove dust/dirt from it.)

    I like the ride of the bike - it climbs well and tracks great downhill. The BB is pretty low and I find that I catch my pedals on rocks more than I do on other bikes. I understand why MBA's "Wrecking Crew" liked these so much back in the day.

    <img src="http://eandsweb.com/bikes/pics/mantis/IMG_1524.JPG">

    <img src="http://eandsweb.com/bikes/pics/mantis/IMG_1526.JPG">

    <img src="http://eandsweb.com/bikes/pics/mantis/IMG_1529.JPG">
    Each bicycle owned exponentially increases the probability that none is working correctly.

  47. #347
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    One more XCR EC to add to the list






  48. #348
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    Whats with Mantis bikes and poor gear selections for photoshoots?
    -eric-

    http://www.rumpfy.com
    Wanted: NDS Suntour XC Pro Microdrive 175mm Crank Arm.

  49. #349
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    Quote Originally Posted by Rumpfy View Post
    Whats with Mantis bikes and poor gear selections for photoshoots?
    What's wrong with Altus and a droopy chain?

  50. #350
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    Loving the big purple job too, laffeaux. Don't see many Mantii in proper sizes The umma gummas are rad too.
    Somec is like the digital Zunow
    And this: http://www.youtube.com/watch?v=JD5h3y0a9AU

  51. #351
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    Wow it's nice to see that bikes after 20 and more years yet cross the trails.
    Very nice the XCR with the low chainstays and the paintjob on the small EC XCR!

  52. #352
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    Flying V

    Another day without the possibility to leave home, so another set of photos.
    In my opinion the most fashinating Mantis made by RC, for the appearence, for the magic feel on the singletrack...
    I hope you will enjoy it!
    The fork is not period correct, I need to install the Pace RC-35 with steel tubolar brake arch.
    In Italy the Mantis frameset were solr with Pace fork...
    Attached Thumbnails Attached Thumbnails All things Mantis...-fv_11.jpg  

    All things Mantis...-fv_01.jpg  

    All things Mantis...-fv_02.jpg  

    All things Mantis...-fv_03.jpg  

    All things Mantis...-fv_04.jpg  

    All things Mantis...-fv_05.jpg  

    All things Mantis...-fv_06.jpg  

    All things Mantis...-fv_08.jpg  

    All things Mantis...-fv_09.jpg  

    All things Mantis...-fv_10.jpg  


  53. #353
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    Quote Originally Posted by Arran View Post
    I'm sticking up for myself
    You did a terrific job. Your mother would be proud of you.
    -eric-

    http://www.rumpfy.com
    Wanted: NDS Suntour XC Pro Microdrive 175mm Crank Arm.

  54. #354
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    Quote Originally Posted by SMRTIN View Post
    What's wrong with Altus and a droopy chain?

    LOL! Not a thingydingy!
    -eric-

    http://www.rumpfy.com
    Wanted: NDS Suntour XC Pro Microdrive 175mm Crank Arm.

  55. #355
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    Quote Originally Posted by Flying_V View Post
    In my opinion the most fashinating Mantis made by RC, for the appearence, for the magic feel on the singletrack...
    Very nice bike!

    I always thought the Valkyrie had the most fascinating appearance.

  56. #356
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    Quote Originally Posted by DoubleCentury View Post
    Very nice bike!

    I always thought the Valkyrie had the most fascinating appearance.
    Thanks.
    About the Valkyrie perhaps you are right, let me say in other words: the most innovative or catch eye appearance...
    Before the Flying V appeared on the scene It was difficult to say that a bike could have this aspect.

  57. #357
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    Looking to pick up an early Pro Floater. Only problem is that there's a fine crack that's formed on the weld on the gusset by the first cable stop on the drive side swing arm.

    Should I be concerned? Can it be repaired?

    All things Mantis...-dsc_0824.jpg
    All things Mantis...-dsc_0352.jpg

  58. #358
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    Quote Originally Posted by RockiMtn View Post
    Looking to pick up an early Pro Floater. Only problem is that there's a fine crack that's formed on the weld on the gusset by the first cable stop on the drive side swing arm.

    Should I be concerned? Can it be repaired?

    Click image for larger version. 

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    That is where mine broke. I think a lot of the mantii with the aluminum swing arms did that. As I recall when i was looking it is a 6000 series aluminum so it needs heat treating. Check around to see if there is somewhere that heat treats in your area. Then find a frame builder that works with 6000 series aluminum and have them repair. I believe that the design was flawed in this swing arm and a repair will just delay the inevitable break anyway.
    Try this: HTFU

  59. #359
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    Pro Floater Repair

    You can see the repair I had done to mine in this thread, with heat treatment.

    Mantis Pro-Floater circa 1993

  60. #360
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    Mine has a crack in almost the same place. The guy I got it from said it was not a structural problem though.



    Picked this one up today thanks to a great tip. Check another one off my want list. Including correct rigid fork and seat clamp, Mavic crank set and perfect condition, uncut Klein Mission Control. Price? Lets just say its the same price I just sold a Bridgestone MB1 frame for....I couldn't get out of there fast enough.



    Need: McMahon brake for roller cam mounts, Mountain Goat fork.

  61. #361
    the new Gilbert Grape
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    Quote Originally Posted by muddybuddy View Post
    Very nice!!! I like the color.
    Each bicycle owned exponentially increases the probability that none is working correctly.

  62. #362
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    Quote Originally Posted by muddybuddy View Post
    Mine has a crack in almost the same place. The guy I got it from said it was not a structural problem though.



    Picked this one up today thanks to a great tip. Check another one off my want list. Including correct rigid fork and seat clamp, Mavic crank set and perfect condition, uncut Klein Mission Control. Price? Lets just say its the same price I just sold a Bridgestone MB1 frame for....I couldn't get out of there fast enough.



    was that me?
    Try this: HTFU

  63. #363
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    I think it was yours. I was just joking about what the previous owner said. It's next in line to go to the frame repair shop.
    Need: McMahon brake for roller cam mounts, Mountain Goat fork.

  64. #364
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    Quote Originally Posted by muddybuddy View Post
    I think it was yours. I was just joking about what the previous owner said. It's next in line to go to the frame repair shop.
    Oh I got the joke I just wondering if it was mine. I couldn't remember who I sold it to. Glad you are getting it repaired. Wish my area had someone that could have done it but then it is better off with a collector than me as I still don't have the impetus to get my XCR-EC back together and such. Let me know when you get it repaired and back together.
    Try this: HTFU

  65. #365
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    All things Mantis...-integral-binder-mantis-7.jpgAll things Mantis...-integral-binder-mantis-4.jpgJust shipped out a binder for a XCR. RC is going to do the repair himself.

    Trying to get the guts at the local bike shop was a joke. How do some guys even get a job I'll never know. It was like talking carburetors to the Napa counter person kid. I'm pretty sure they still use seat binder QR's but this guy had no clue as to what I was doing. What, modify something to fit what??? Didn't know the difference between 5 and 6mm even. All the old timers are long gone.
    I did find some new Campy binders at another shop in Boulder for $17 and together with another $7 import the guts can be made pretty easily.
    [SIGPIC]http://www.geckocycles.com[/SIGPIC]

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  66. #366
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    Quote Originally Posted by geckocycles View Post
    Just shipped out a binder for a XCR. RC is going to do the repair himself.

    Trying to get the guts at the local bike shop was a joke. How do some guys even get a job I'll never know. It was like talking carburetors to the Napa counter person kid. I'm pretty sure they still use seat binder QR's but this guy had no clue as to what I was doing. What, modify something to fit what??? Didn't know the difference between 5 and 6mm even. All the old timers are long gone.
    I did find some new Campy binders at another shop in Boulder for $17 and together with another $7 import the guts can be made pretty easily.
    haha. It's kinda funny. Now a long-time rider is one that knew those old tires before tubeless (circa 2003).

    Had a "vintage seller" on ebay tell me not to worry, because the tires would be super easy to swap 'cause they're not even tubeless. Got a nice chuckle out of that one.

  67. #367
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    What's a tubeless tire?
    LOL
    [SIGPIC]http://www.geckocycles.com[/SIGPIC]

    There is but one rule in life. "First one to the finish line wins!"
    VVA

  68. #368
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    Quote Originally Posted by geckocycles View Post
    What's a tubeless tire?
    LOL
    A flat

  69. #369
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    All things Mantis...

    Hello,
    I'm trying to renew my flyingV (controltech) by fitting disc (a2z adapter) and mounting a suspension fork, what if I choose a 100/120 travel...
    Will the resulting geometry be undriveble?
    The frame is a bit small for me and I want to create an usable fun bike.
    if you have time left after a ride...you could have ridden more!

  70. #370
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    If the frame is too small, I don't see how adding discs and a long travel fork are going to fix that?
    Need: McMahon brake for roller cam mounts, Mountain Goat fork.

  71. #371
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    All things Mantis...

    A bit small, not too much, I rode it for years, but I want to add some fun to the thing, I'm no geometry expert and I do not know how far I can go in fork length
    if you have time left after a ride...you could have ridden more!

  72. #372
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    I don't know specifically as I haven't ridden the bike or know what fork is on there now but I would be very hesitant to put a 120mm fork on it or even a 100mm. From what I recall in other threads, putting disc brakes on bikes that weren't designed for it often results in a broken stay and that would be a real shame.

  73. #373
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    Those CT built frames were designed around 80mm travel. Anything more and it will start to feel like a badly designed chopper and be less and less fun to ride. Add to the price of properly designed disc mounts, and I'm pretty sure it won't be worth it.

  74. #374
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    All things Mantis...

    Ok, I will try step by step, I already have the a2z adapter (very cheap, around 25 bucks) so first discs, I will go easy on the lever and see if the back holds it.
    I will keep u updated
    if you have time left after a ride...you could have ridden more!

  75. #375
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    The longer the travel, the shorter the stem you want. Older geometry means shorter top tubes. I did the math and i would say "stay away from long travel forks".
    WTB: Bomber Z2 1 1/8 steerer, in good to excellent shape OR bomber rebuild kit.

  76. #376
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    I just pick this up today from the original owner, Rick.
    1988 or 89 Valkyrie.
    Original fork and I think, in the box of parts he gave me, the original stem.
    The frame is straight but will need a repaint sometime in the near future as the original owner tried to remove the old black paint on the rear but gave up after a bit.
    I don't know much about Mantis, only what I read in this thread and some articles I found in a google search.
    The fellow I bought it from said it was custom. Did they do custom frames?
    I see no serial number on the frame. Where should I look?
    Rick also gave me 2 old Mantis T-shirts. One signed by Richard C himself.
    BTW, who was calling him and telling him they would pay triple?

    Any help or advice is welcomed.


    IMG_3168 by gearlessinseattle, on Flickr


    IMG_3170 by gearlessinseattle, on Flickr


    IMG_3171 by gearlessinseattle, on Flickr


    IMG_3174 by gearlessinseattle, on Flickr

  77. #377
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    So, after further investigation and calling the original owner it looks like the frame had been repaired back in the early 90's. He cant remember when.
    It seems he sent it back to mantis and they re-welded it but never re-welded the cable guides for the front derailleur and rear derailleur. DOH! So that is why he never road it after it was fixed. Gonna take it to a friend that builds frame locally and see what he can do.

  78. #378
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    Looks like a really nice one with fillet brazed joints. There was a giant one on eBay recently that was also brazed not TIG welded. Did not know that these existed for the elevated model.

  79. #379
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    Awesome awesome awesome pick up. The one I had (now DC has it) was also cracked and repaired in the same place. I think this was pretty common on these Valkyries...forgetting to read the guides seems about right too.

    Definitely worth getting the guides put back in place and acceptable for a respray.

    Congrats!
    -eric-

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  80. #380
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    Thanks Eric.
    I have always wanted one because they remind me of the old Quadangle BMX bike.
    It may be a little small for my 6 feet but I think I can make it work.
    Now just to choose a color.

  81. #381
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    Go wild. Maybe match the t-shirt you got.
    -eric-

    http://www.rumpfy.com
    Wanted: NDS Suntour XC Pro Microdrive 175mm Crank Arm.

  82. #382
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    I'm a big fan of the elevated chainstay bikes too. I used to want a Yeti but after seeing a bunch of Mantises floating around, I could convince myself that one of these would make a great belt drive IGH bike. Even easy enough to weld on disc tabs and bring it up to modern snuff.

  83. #383
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    Quote Originally Posted by DoubleCentury View Post
    Looks like a really nice one with fillet brazed joints. There was a giant one on eBay recently that was also brazed not TIG welded. Did not know that these existed for the elevated model.
    Yours isn't brazed DC?
    The few Valkyries (elevated and not) that I've had were all brazed. Most of them were unfiled fillets.
    *** --- *** --- ***

  84. #384
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    Quote Originally Posted by Shayne View Post
    Yours isn't brazed DC?
    The few Valkyries (elevated and not) that I've had were all brazed. Most of them were unfiled fillets.
    Hey, you might be right. The joints at the BB are all TIG for sure, but the rest on mine do look more like unfiled fillets. I always thought they were really bad TIG welds or even gas welds. My seattube has a repair with lots of TIG beads. It certainly doesn't look as nice as this one LarryJo just scored.

    For reference, here is my Valkyrie,

    1989 Mantis Valkyrie, S/N VK1912

  85. #385
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    Quote Originally Posted by LARRYJO View Post
    I just pick this up today from the original owner, Rick.
    1988 or 89 Valkyrie.
    Original fork and I think, in the box of parts he gave me, the original stem.
    The frame is straight but will need a repaint sometime in the near future as the original owner tried to remove the old black paint on the rear but gave up after a bit.
    I don't know much about Mantis, only what I read in this thread and some articles I found in a google search.
    The fellow I bought it from said it was custom. Did they do custom frames?
    I see no serial number on the frame. Where should I look?
    Rick also gave me 2 old Mantis T-shirts. One signed by Richard C himself.
    BTW, who was calling him and telling him they would pay triple?

    Any help or advice is welcomed.


    IMG_3168 by gearlessinseattle, on Flickr


    IMG_3170 by gearlessinseattle, on Flickr


    IMG_3171 by gearlessinseattle, on Flickr


    IMG_3174 by gearlessinseattle, on Flickr
    If I'm correct Mantis do custom frames, especially the early butch of production of each type of frames. For the serial number give a look on the bottom of the bottom braket... Very nice find, keep us informed with the restoration of the paint. And post some photos of the components and the Mantis stem!

  86. #386
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    Quote Originally Posted by Flying_V View Post
    If I'm correct Mantis do custom frames, especially the early butch of production of each type of frames. For the serial number give a look on the bottom of the bottom braket...
    This ^

    A lot of his work was semi-custom/custom.
    The serial number will be unter the BB but may be filled in with paint. It will be VKxxxx or the owners name/nickname.
    *** --- *** --- ***

  87. #387
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    Quote Originally Posted by zygote2k View Post
    I'm a big fan of the elevated chainstay bikes too. I used to want a Yeti but after seeing a bunch of Mantises floating around, I could convince myself that one of these would make a great belt drive IGH bike. Even easy enough to weld on disc tabs and bring it up to modern snuff.
    Please don't molest these bikes. If you want disc brakes, just get a modern bike.

  88. #388
    velocipede technician
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    Get a unicycle
    looking for 20-21" P team

  89. #389
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    Quote Originally Posted by girlonbike View Post
    Please don't molest these bikes. If you want disc brakes, just get a modern bike.
    Beat me to it.

    Why bring an old design using old tube sets never designed for the stresses of disc tabs etc to bring it up to modern snuff?

    Makes no sense whatsoever.
    Wanted: more of the same ... but different

  90. #390
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    Quote Originally Posted by zygote2k View Post
    I'm a big fan of the elevated chainstay bikes too. I used to want a Yeti but after seeing a bunch of Mantises floating around, I could convince myself that one of these would make a great belt drive IGH bike. Even easy enough to weld on disc tabs and bring it up to modern snuff.
    CT Team Issue bikes are good candidates for this. Not a Mantis.
    -eric-

    http://www.rumpfy.com
    Wanted: NDS Suntour XC Pro Microdrive 175mm Crank Arm.

  91. #391
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    Quote Originally Posted by LARRYJO View Post
    So, after further investigation and calling the original owner it looks like the frame had been repaired back in the early 90's. He cant remember when.
    It seems he sent it back to mantis and they re-welded it but never re-welded the cable guides for the front derailleur and rear derailleur. DOH! So that is why he never road it after it was fixed. Gonna take it to a friend that builds frame locally and see what he can do.
    Sorry for that, but from the pictures seems that the cable guide for the rear derailleur are in place, it seems that the cable guide for the rear brake are missing...

  92. #392
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    I have a favor to ask of the mantis owners out there.
    I need a good photo of the non drive side of a Valkyrie as that is where the front deraillier and rear brake guides/stops are.
    Since mine are missing I need a good reference photo to give to my buddy who will weld some on.
    Also, does anyone have a line on decals?
    Thanks,
    LJ

  93. #393
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    Did you check the link I posted?

  94. #394
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    Quote Originally Posted by DoubleCentury View Post
    Did you check the link I posted?
    Doh! Just saw it. Thanks!

  95. #395
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    All things Mantis...

    A2z disc adapter in flyingV Ct frame, done.
    SID race 100mm, done.
    Rides great!!
    I will post some pictures in september after repaint, I'm too ashamed of the actual paint condition ..
    I have still an issue to solve that I forgot to mention before:
    No matter what rear qr I use, under heavy pedal force the qr will slip driveside making the tyre rub against the left side of chainstais..
    Anyone had the same problem?
    if you have time left after a ride...you could have ridden more!

  96. #396
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    Quote Originally Posted by ironbelly View Post
    to solve that I forgot to mention before:
    No matter what rear qr I use, under heavy pedal force the qr will slip driveside making the tyre rub against the left side of chainstais..
    Anyone had the same problem?
    chack for parallelism on the rear dropouts....if one is bent, the skewer wont hold correctly and slide out under load.

  97. #397
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    Quote Originally Posted by ironbelly View Post
    No matter what rear qr I use, under heavy pedal force the qr will slip driveside making the tyre rub against the left side of chainstais..
    If a Shimano QR is slipping there's likely some issue with the frame. They hold the wheel incredibly tight - I've used them to hold single speed wheels with horizontal dropouts.
    Each bicycle owned exponentially increases the probability that none is working correctly.

  98. #398
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    All things Mantis...

    Quote Originally Posted by syklystt View Post
    chack for parallelism on the rear dropouts....if one is bent, the skewer wont hold correctly and slide out under load.
    Ok, will check
    if you have time left after a ride...you could have ridden more!

  99. #399
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    also, I've seen this before (mostly on the drive side form the der hanger being bent), you should be able to tell what side is slipping first...that would usually be the bent one.

  100. #400
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    The drive side is slipping first, but the hanger is straight, longitudinally and vertically...
    Idunnow!!
    if you have time left after a ride...you could have ridden more!

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