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Old 03-21-18, 12:21 PM
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Shimano's freehub and Maillard's Helicomatic could be seen as the answer to the 126mm broken axle problem, though looking back we usually regard well built 126mm freewheel hubs as sufficient even for MTBs. I don't know if there was some metallurgic magic that went on in the '80s or if the move to 126 from 120 just exposed low quality axles that were barely sufficient for even 120mm duty.

An awful lot of improvements in metal were made during the '70s.
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