ORIGIN 8 REVOLVR BB86/92 TO FIT GXP OS THREAD TOGETHER SB BLACK GENERAL **Only compatible with tandems that

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

Premium quality housing

Premium direct mount chainring made specifically for E13 TRS cranks

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

Produces consistent tension every time

ORIGIN 8 REVOLVR BB86/92 TO FIT GXP OS THREAD TOGETHER SB BLACK GENERAL **Only compatible with tandems thatThread 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