Originally Posted by
tricky
I replaced the Shimano U-Brake on my 87 Fisher Hoo-koo-E-Koo with this and it worked well after I replaced the pads.
https://www.modernbike.com/diatech-g...-black-u-brake
I can't vouch for your exact situation but your u-brake looks very similar to the one I replaced. I bet a new u-brake would work, but if you go that route, buy from a shop that allows returns just in case.
Yeah I've been wondering how to measure the reach on a u brake. If I measure from the "center" of where the two arms cross, I get a reach of a bit over 90 mm. With caliper brakes you measure from the bolt hole brake center but of course there is no center bolt with a u brake.
So I guess with u brakes, you measure from the bolt hole which the arm is screwed into. If that's the case, then the reach on my bike is 44 mm and this brake will work perfectly. I may give this a try since Modern Bike is a few blocks from my house which makes returns easy as pie.