Dura Ace Track Lockring

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Shimano sprocket lockring HB-7710-R / HB-7600-R - for Track bike hubs The Shimano sprocket lockring for Dura Ace Track HB-7710-R and HB-7600-R is a lockring that fixes the sprocket to the Track rear hub. The lockring is made of steel and has a 1.29 x 24 tpi thread. It is also compatible with HB-7600-A-R. Technical Information: Material: SteelThreads: 1.29" x 24 tpi (left-hand threaded) Compatibility: - Dura Ace Track HB-7710-R- Dura Ace Track HB-7600-R- Dura Ace Track HB-7600-A-R Show more