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Shimano Alivio FH-M4050 Cassette Freehub Body - Y31H98040

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Questions & Answers (1) Q & A
For use with Shimano Alivio FH-M4050 rear hubs.

This Cassette Freehub Body can also be used on the following rear hub:

- Shimano Alivio FH-T4000

This is an "A" match which indicates that the parts are the same in materials, appearance, finish & size etc.

Genuine Shimano replacement part.
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Questions & Answers (1)
Is This Hub Compatable With A Shimano Fh-Rm66 10 Speed Rear Hub
12 Dec 2016
SJS Customer Service:

Although the hub fittings appear the same the bearing cups are different and the seals would not be cross compatible. We do stock the correct freehub body for the FH-RM66 hub though and these are SJSC part number 29220.