ORIGIN 8 REVOLVR BB86/92 TO FIT GXP OS THREAD TOGETHER SB BLACK GENERAL 104mm/4B alloy chainrings for double

104mm/4B alloy chainrings for double cranksets

Premium quality housing

Fits 32-44 tooth chainrings

Ergonomic and perfectly sized hoods create a natural extension from the riders hands to the bike

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

ORIGIN 8 REVOLVR BB86/92 TO FIT GXP OS THREAD TOGETHER SB BLACK GENERAL 104mm/4B alloy chainrings for doubleThread 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