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Old 12-22-25 | 07:38 PM
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Portlandjim
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From: Big Sur California

Bikes: 1946 Holdsworth Cyclone, 1969 Cinelli SC, 1972 Raleigh Pro, 1973 Merz road bike, 1974 Alex Singer Sportif, 1974 Merz track bike, 1975 Teledyne Titan, 1976 Ritchey road bike, 1977 DiNucci built Merz track bike, 1977 (?) Exxon Graftek, many more!

Originally Posted by Robvolz
Did these originally use the Phil drum brake?

my vintage tandem has a Phil drum brake on the rear.
No, that version had 1.370 x24 TPI threading on both sides for the rear hub and one threading on the front hub. The Phil disk brake are dangerous, the friction disk can fail. This will either lead to no brake action or the wheel locking up.
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