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  1. #1
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    Old frame build with 700c wheels... need drop bolts?!

    I'm building up an old frame with new 700c wheels and can't get my SRAM Rival brake calipers to fit. I don't want to have to buy long reach calipers unless I really have to. I think need to make up about 1.5cm on the back and 2.5cm on the front using drop bolts. If anyone has any or knows where to get them I would love to know.

  2. #2
    Low car diet JiveTurkey's Avatar
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    Quote Originally Posted by slopvehicle View Post
    Not wearing a helmet makes me more aware of my surroundings. I find myself anticipating the hardness of concrete 50 or 100 feet in front of me, it's almost a zen-like connection between my face and the pavement.

  3. #3
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    The amount of drop you need is beyond what's available commercially, which is usually limited to about 10mm or less. You could do something a la Sheldon Brown, but with all due respect to an old friend, I don't think you'll get decent rigidity unless you do a very good job.

    Your best bet is to buy new calipers that reach, and this is coming from someone who hates telling folks to just buy new.
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  4. #4
    Bianchi Goddess Bianchigirll's Avatar
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    I don't think they ever made dropbolts to fit DP style brakes. I agree with FB your better off buying brakes that fit the bike rather then mickey mousing something.
    Bianchis '87 Sport SX, '90 Proto (2), '91 Boarala 'cross, '93 Project 3, '88 Trofeo, '86 Volpe, '89 Axis, '79 Mixte SOLD, '99 Mega Pro XL Ti, '97 Ti Megatube, , '90 something Vento 603,

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    There is no point in using SRAM Rival calipers with ****ty, flexy, creaky homemade drop bolts. Just buy long-reach brakes.

  6. #6
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    Not what I wanted to hear. Oh well, I suppose I shall give in and buy some new bakes.

    In that case any suggestions?

  7. #7
    Constant tinkerer FastJake's Avatar
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    Quote Originally Posted by joswa View Post
    In that case any suggestions?
    What reach do you need? You must know this before you buy anything. Reach: http://www.sheldonbrown.com/calipers.html#reach
    Why "derailer" is the correct way to spell the gear-change mechanism: sheldonbrown.com/derailer.html

  8. #8
    Insane Bicycle Mechanic Jeff Wills's Avatar
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    Quote Originally Posted by Bianchigirll View Post
    I don't think they ever made dropbolts to fit DP style brakes. I agree with FB your better off buying brakes that fit the bike rather then mickey mousing something.
    Ta-da! : http://sheldonbrown.com/dpdropbolt.html
    Too bad they were gone before Sheldon left us...

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  9. #9
    Insane Bicycle Mechanic Jeff Wills's Avatar
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    Quote Originally Posted by joswa View Post
    Not what I wanted to hear. Oh well, I suppose I shall give in and buy some new bakes.

    In that case any suggestions?
    Bakes? We're having a bake sale? I love the smell of fresh cookies...

    FWIW: Bike Tools Etc. sells a variety of dual-pivot brake calipers in all sorts of lengths: http://www.biketoolsetc.com/index.cg...Brakes&tc=Road
    Jeff Wills

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