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Mavic had an adapter to mount road calipers. I don't remember if it was meant for 26" or 700c. Did they do a u brake adapter?
No. Using the bead seat diameters gives you (700c) 622mm - (26") 559mm = 63mm/2 = 31.5mm radial difference in the boss location. You would need ±58mm.Question is, would it higher them to be in the ball park for a U-brake?
No. Using the bead seat diameters gives you (700c) 622mm - (26") 559mm = 63mm/2 = 31.5mm radial difference in the boss location. You would need ±58mm.
I’m a bit confused why are the canti bosses in a slot shape? Are the canti bosses 75 or 85 mm apart?Now I remember why I didn't do it.
Look at the attached drawing. Remember that I wanted to go from U Brake to canti...it would have meant that the canti bosses hung out in the wind, unsupported; too much resonance and chatter.
If you are going from canti to Ubrake, it might work if you could add a 3rd attachment point on the brake bridge (if there is one). Make the plate out of 1/4" alloy. Could work, I guess.
View attachment 718845
I just put together a quick drawing based on the dimensions from the links in the post above that one.I’m a bit confused why are the canti bosses in a slot shape? Are the canti bosses 75 or 85 mm apart?
Got itI just put together a quick drawing based on the dimensions from the links in the post above that one.
Cantilever bosses are usually located in that range of 75-85mm c/c. If one were to build a custom adapter plate, the centres could be machined exactly as specified, otherwise it may be beneficial to slot the mounting holes to provide some room for error.