longer caliper brakes?

[CRASH]

I have a dilemma. I'm building a one-off muscle bike for the MBBO2.

Monster Ray

Today I mocked up the new rear wheel with the brakes and they don't reach.

I new the diameter of the new rim was smaller, but I thought (hoped) the vertical adjustment slots would be able to reach at the lowest point. Well, not even close.

Does anyone know if there is such a thing as longer cantilever brakes that would cover this distance? Or do I have to do some weird fabrication? :?

 

[danthrift71]

Yup. Caliper brakes come in sizes. Most brands, the model name indicates the length of the caliper arms. e.g. Dia-Compe 1020 is longer than the 890... BMX/Beach Cruiser sizes should do the trick for you. 890-1020. Somewhere in that range. Avoid anything off of a "10 speed" (skinny tires).

 

[CRASH]

Thanks, I'll start searching for a set. I checked my set... no number on them. Just say Dia-Compe.

 

[user 135]

Here is the various reaches for Diacompes.
Brake Caliper Reach, mm
Classic 450 sidepull 39~49
Classic 500 sidepull 43~57
Classic 730 sidepull 53~71
Classic 810 sidepull 61~79
Classic 1020 MX sidepull 74~92
Classic 1080 sidepull 84~108

These should work http://www.porkchopbmx.com/1080-style-B ... R-ARCH.htm

 

[CRASH]

Very awesome! Thanks!