Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.ItchyZipper
07-17-09, 06:45 AM
I hope that someone can help me here. I do frame repair and have built a couple of frames, but never needed to braze on U brake studs before. I have been commissioned to add studs to a BMX frame and fork. The wheel size is 406. I measured a new bike at the shop and it looks like 230mm from the center of the boss to the inside edge of the dropout, where the axle sits. I'm also guessing that the width between bosses should be 80-90mm. How do those numbers sound? thanks