Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert Only Nuts & Washers and the trail ahead

and the trail ahead

EAN: 4711103651605

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

EAN: 4710944224061

Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert Only Nuts & Washers and the trail aheadOPTIS (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