Thread: Shimano UG/HG Freebody replacement won‘t work
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Old 06-02-24 | 11:18 AM
  #28  
jPrichard10
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From: Portland, Cascadia

Bikes: 1976 Merz' Tourer, 1986 Strawberry, 1978 Trek 910, 1982 Trek 950, 1982 Trek 720, 1981 Trek 510

Not sure if this helps, but when I "Hyperglided" a first gen 600 UG hub (with different splines) I made a hybrid free hub body with the two.

Meaning I opened up both free hub bodies and out the HG "outer" over the UG "inner" and it worked! Pawls aligned well and everything.

Absolutely zero promise that it would work on a different set if hubs though.

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