Super Course Brake Bridge?
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Join Date: Apr 2005
Location: Ann Arbor, MI
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Bikes: 1980 Masi, 1984 Mondonico, 1984 Trek 610, 1980 Woodrup Giro, 2005 Mondonico Futura Leggera ELOS, 1967 PX10E, 1971 Peugeot UO-8
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Super Course Brake Bridge?
Hi, my '73 Super Course has a tubular brake bridge across the seat stays. Many bikes have this, but better frames have some sort of fitting in the middle that the brake can bolt to securely, without threatening to flatten the bridge tube. The old Super Course solved this problem with a steel tube inserted into the bridge tube to house the brake pivot/mounting pin, and take the stress of a tightened nut in compression.
So far so good. My pivot bolt is loose, and tends to rattle in the bridge tube. I haven't finished the build on this frame yet, but if I test-fit a brake (a 75 mm reach DiaComp center pull with all the mounting blocks) the brake wiggles even after the bolt is tightened. The tube is also not to hard to pull out.
I think I need to secure that insert tube. Anybody worked this problem in the past?
Am I on the right track?
Road Fan (I'm working on some pictures)
So far so good. My pivot bolt is loose, and tends to rattle in the bridge tube. I haven't finished the build on this frame yet, but if I test-fit a brake (a 75 mm reach DiaComp center pull with all the mounting blocks) the brake wiggles even after the bolt is tightened. The tube is also not to hard to pull out.
I think I need to secure that insert tube. Anybody worked this problem in the past?
Am I on the right track?
Road Fan (I'm working on some pictures)