ORIGIN 8 REVOLVR BB86/92 TO FIT GXP OS THREAD TOGETHER SB BLACK GENERAL 7 sprockets on 2 alloy

7 sprockets on 2 alloy spider carriers

Extra durable and corrosion resistant chain made tough to accept the abuse of daily use and commuting

**Only compatible with tandems that have both chains on the right side of the tandem**

5` modern tires

Premium quality housing

ORIGIN 8 REVOLVR BB86/92 TO FIT GXP OS THREAD TOGETHER SB BLACK GENERAL 7 sprockets on 2 alloyThread together bottom brackets provide a secure and stable shell interface for smoother operation and extended bearing life OS versions are designed for use in frames with worn out, oversized bottom bracket shells Hybrid AL6061 Nylon fiber cups for a superior fit and noise free operation Low friction dual seals protect the bearings from harmful contaminants Sealed premium bearings are both serviceable and replaceable Models available for both Shimano