Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert Only Nuts & Washers EAN: 4710944224061

EAN: 4710944224061

Manufacturer Part Number: 01502890000

Fits some K2 and Proflex

Original Cannondale C3 carbon-wrapped alloy seat post in an unusual 27

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

Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert Only Nuts & Washers EAN: 4710944224061OPTIS (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