UL Guidering Boost Offset

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The e*thirteen UL (Ultralight) Guiderings are beautiful as well as incredibly light. Compatible with 10,11,and 12-speed drivetrains. Narrow-wide tooth design for chainring retentio n through the rough stuff Ultralight, strong, and beautiful design 10, 11, and 12-speed compatible Only compatible with e*thirteen's direct mount Quick Connect interface Show more