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Old 06-22-16, 07:20 AM
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The Golden Boy 
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Join Date: Aug 2009
Location: Waukesha WI
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Bikes: 1977 Trek TX700; 1978/79 Trek 736; 1984 Specialized Stumpjumper Sport; 1984 Schwinn Voyageur SP; 1985 Trek 620; 1985 Trek 720; 1986 Trek 400 Elance; 1987 Schwinn High Sierra; 1990 Miyata 1000LT

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Originally Posted by clasher View Post
This isn't the whole story. The spacing between the posts has changed. Touring bikes from the 80s tend to have the studs spaced 65mm or so while mountain bikes and modern hybrids, cx and touring bikes seem to be in the 80+mm area. For example on a bianchi randonneur i had the only brakes that would work were vintage dia-compe becuase the posts were placed for 27" wheels. Modern cantis also didn't work on miyata 1000 because the posts were too close together. The shimano altus cantis are the only modern brakes I can think of that would work.

I highly recommend measuring your spacing on the studs before buying new brakes if the bike is from the 80s.
Exactly!

The difference between different brakes is the difference in being able to make them work or not. This is especially evident when going from 27" to 700c.

FWIW- the front bosses on my Voyageur SP Are spaced at 50mm. For real.
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