Were there ever alloy cottered cranks made?
11-07-20, 05:58 PM
#51
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have always thought of the square bolt heads as "almost standard" for five-pin chainsets...
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have always thought of the square bolt heads as "almost standard" for five-pin chainsets...
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10-25-22, 07:33 PM
#52
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OKAMOTO Aluminum Bicycle, Japan, 1940's
frame constructed of aluminum tubing connected with aluminum lugs and held together with rivets
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OKAMOTO Aluminum Bicycle, Japan, 1940's
frame constructed of aluminum tubing connected with aluminum lugs and held together with rivets
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