Originally Posted by
Classtime
If you are brazing on posts, can"t you position them to use regular Mafacs?
"Regular" Mafac Racers are great for 35 mm tires, clearance is getting tight at 38 mm tires. For 40+ tires ya gotta have Raids. 48+ is where ya gotta have cantis, or discus brakes, which apparently are made from ancient Greek frisbees. I don't use them myself obviously.
