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Old 08-23-13, 05:58 PM
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I dont think you should need to shorten the fork legs any. The OD of a wide 650b tire is pretty close to the OD of a narrow 700c tire. In any case, just start with a 700c fork that has the axle-crown measurement that you want. Adding (or moving) cantilever bosses on a steel fork is a fairly straitforward operation.

If you did need to drastically shorten a fork (like to fit a 571mm 650c wheel with narrow tires) then it makes more sense to cut off the end of the fork and add new dropouts, rather than to try to un-braze the fork legs from the crown.
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