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  1. #1
    one chain, two sprockets
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    Bontrager Mavic MA 2

    I found a little piece of history in my parts stash today:
    Bontrager Mavic MA 2-image_1.jpeg

    This is a set of "Bontragers" circa 1986. Keith would take 40-hole road rims, cut out 4-holes, and re-roll them into 36-hole, 26" rims! Not all tires would fit, so you's have to test it before installation (much like you do with some tubeless today). Most notably, the Fisher Fattrax didn't always work out...

    State of the art back in the day. And yes, these went for the sum of $26/each!

    Tom P.

  2. #2
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    Quote Originally Posted by one piece crank View Post
    I found a little piece of history in my parts stash today:
    Click image for larger version. 

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    This is a set of "Bontragers" circa 1986. Keith would take 40-hole road rims, cut out 4-holes, and re-roll them into 36-hole, 26" rims! Not all tires would fit, so you's have to test it before installation (much like you do with some tubeless today). Most notably, the Fisher Fattrax didn't always work out...

    State of the art back in the day. And yes, these went for the sum of $26/each!

    Tom P.
    I think at that point (based on that label) Mavic was already making them that way. The cut downs often didn't have a rim decal and sometimes only had half the decal because it was typically placed right over the seam where it was cut.

  3. #3
    artistic...
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    what's the weight on those?
    want: Ibis ti handlebar. suntour 31.8 front derr. bottom pull

  4. #4
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    Quote Originally Posted by Fillet-brazed View Post
    I think at that point (based on that label) Mavic was already making them that way. The cut downs often didn't have a rim decal and sometimes only had half the decal because it was typically placed right over the seam where it was cut.
    Actual KB rolldowns.

    -eric-

    http://www.rumpfy.com

    Wanted: Syncros 27.2 x 425 seatpost, 26.8 x 400 IRD seatpost

  5. #5
    Spin it again
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    Quote Originally Posted by colker1 View Post
    what's the weight on those?

  6. #6
    gobsmacked Moderator
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    Quote Originally Posted by nightshade_rider View Post
    I love this place for the geekhoodism of the masses.

  7. #7
    one chain, two sprockets
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    Quote Originally Posted by Fillet-brazed View Post
    The cut downs often didn't have a rim decal and sometimes only had half the decal because it was typically placed right over the seam where it was cut.
    At this point, there's no way to tell cut-down vs. production. At the time, our shop had a roll of Mavic decals that we put on some rims (along with a DT-COMP decal, as that was the only spoke brand we used.

    I was more surprised I still had them after only ~27 years. Not sure what I'll do with them...

    Tom P.

  8. #8
    velocipede technician
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    Show a pic of the seam
    looking for 20-21" P team

  9. #9
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    I had Bontrager roll-down 32 hole MA2s. They were more than twice that price wholesale in Canada IIRC and Mossey Oak and I got the first sets I'd ever seen in - I believe - 1988.

    Can't for the life of me remember if they had stickers. I seem to recall they did.

  10. #10
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    It looks like the Bontrager version of the MA40 saves you 10 grams. Must be the sticker.

  11. #11
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    Quote Originally Posted by Rumpfy View Post
    Actual KB rolldowns.

    No sticker, any sure fire way to determine if these are Keith Bontragers Roll Downs?

    Bontrager Mavic MA 2-ma.jpegBontrager Mavic MA 2-ma1.jpeg
    Wanted: (1) WTB Roller Cam

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