Thank you, William, for the advice. My studs are 285 from the axle, just like yours. Might give the whole idea a pass.
>________________________________ >From: William <[email protected]> >To: RBW Owners Bunch <[email protected]> >Sent: Saturday, May 14, 2011 11:53 AM >Subject: [RBW] Re: Paul Motolite brakes > >Short answer, yes, it is more complicated than that. Going from 700c >to 650b on a cantilever posted bike is almost certainly doomed to >disappoint. Even if you have brakes that have massive range of >adjustability, putting the brake pads a full 19mm lower than they >should be is a huge move towards the squishier, higher MA (mechanical >advantage) side of the spectrum. The brakes, if they can be set up at >all, will most likely feel way too squishy at the lever. High cable >pull levers (like V-levers) can mitigate that somewhat. Measure where >your posts are on your frame. For example, I just measured on my 700c >wheeled Hillborne. From the center of my rear axle to the center of >the canti stud it measures ~285mm. My brake pads are right in the >middle of their adjustability range, so I'd call that stud placement >perfect. Ideally for 650B, the canti studs would be 19mm lower >(700c=622mm diameter=311mm radius and 650B=584mm diameter=292mm radius >311-292=19mm). Measure yours. If yours are at 285 like mine, I'd be >concerned. If yours are at 290, I'd say forget it. If however, they >are on the low side, like 275, then your brake set-up might work OK. >Good luck. Let me know if any of this is not clear. > >On May 14, 10:12 am, Ray <[email protected]> wrote: >> I know that some of you are very familiar with these brakes. Can one >> can use these brakes on a 700c sized frame to convert to 650B by >> adjusting the pads lower on the brakes? Or, is it a lot more >> complicated than that? > >-- >You received this message because you are subscribed to the Google Groups "RBW >Owners Bunch" group. >To post to this group, send email to [email protected]. >To unsubscribe from this group, send email to >[email protected]. >For more options, visit this group at >http://groups.google.com/group/rbw-owners-bunch?hl=en. > > > > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
