Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert Only Nuts & Washers Enhanced walkability and adjustability make

Enhanced walkability and adjustability make this bike cleat comfortable and functional for every level of cyclist

Cassette Cogs: 10-12-14-16-18-21-24

and the trail ahead

152396-Q0-L

Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert Only Nuts & Washers Enhanced walkability and adjustability makeOPTIS (Odyssey Pneumatic Tire Insert System) is a lightweight, highly tunable, high efficiency, tubeless tire insert. Tire assemblies are one of the most important performance factors for any bike. They provide all the grip to the ground, they serve as a critical first element of the bikes suspension and they provide essential support to the cornering forces that the bike encounters. OPTIS separates the function of the bikes grip from its suspension