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  1. #1
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    Brake modification for bent

    I have an Optima Baron that I am converting to 700c (to take advantage of my race wheels). Does anyone have a suggestion on how to modify a brake system to allow the 26" brake bosses to work properly with a 27" wheel? I am not worried about the front, as I will be changing the fork...

    If I can't find a good system, I guess I will go 650c all around, but it would not be my first choice.

    Happy riding!

  2. #2
    Recumbent Evangelist
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    Are there any brakes available, that are made for this purpose?
    www.rebel-cycles.com

    The official Canadian dealer of TW-Bents recumbent bicycles!

  3. #3
    Senior Member BlazingPedals's Avatar
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    I cannot fit a 700c wheel on my Baron - the brake bridge is too close. Are you saying that your brake bridge will allow it? Obviously, disc brakes completely eliminate that issue, but your race wheels probably aren't disc-compatible.

  4. #4
    Cycling Anarchist Trsnrtr's Avatar
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    Quote Originally Posted by BlazingPedals
    I cannot fit a 700c wheel on my Baron - the brake bridge is too close.
    Same here. I do run a 650C wheel in the back with a Shimano 600 brake.
    Dennis T

  5. #5
    Senior Member
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    Quote Originally Posted by jeff-o
    Are there any brakes available, that are made for this purpose?

    With Paul Motolite Z brakes you can move the pads up and down the brake arm, but I don't know if they can go from 26" to 700c.

    http://webcyclery.com/product.php?pr...cat=285&page=1

  6. #6
    Senior Member
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    Check out Paul Moto BMX brakes, they are just like the Motolite Zs but with a wider range of adjustment.

    http://www.paulcomp.com/motobmx.html
    Last edited by Recumbomatic; 03-08-07 at 02:08 PM.

  7. #7
    Senior Member BlazingPedals's Avatar
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    Quote Originally Posted by BlazingPedals
    I cannot fit a 700c wheel on my Baron - the brake bridge is too close. Are you saying that your brake bridge will allow it? Obviously, disc brakes completely eliminate that issue, but your race wheels probably aren't disc-compatible.
    I should amend what I wrote. discs will eliminate the problem of locating the brakes, but if the bridge is so close that you can't fit the wheel, then you're SOL. I recommend using 650c if you're going to try big wheels. If the experiment is a flop, you can at least keep the 650C on the rear.

  8. #8
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    700c on a Lynxx

    The Lynxx does not suffer from the same limitation with the brake boss as the Baron. It is set up for v-brakes, and there is ample clearance for a 700c wheel, as I have had one on in the trainer with no problems at all...

    I have checked the fit in light of how much higher the bike will be with the 700c wheels... it is going to be a bit of a stretch, but I am using it for highway miles, so I am not forseeing a problem... provided I can get the brake system to work. I had though of discs as well, but that rules out my 6500 wheels...

    Thanks for the help. the Paul Motolite BMX brakes look EXACTLY like what I need... thanks!
    Jorin
    ps. I will post pictures when I am done...

  9. #9
    Senior Member
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    No problem. I might upgrade my highracer to 700c too. Niagara Cycle Works has them for $104 + shipping.

    http://www.niagaracycleworks.com/pro...BMX-V-Type.htm

  10. #10
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