Optis Tubeless Tire Insert - 29" x 28-40mm Insert w/ Standard Presta Valve MFPN=213035 The Redline Classic K1 is

The Redline Classic K1 is a world-class classic ski designed for reliable grip and the optimal snow contact in cold and fine snow conditions

Valve stem included Model XC Single Size 29" Tire W 1

0 Classic skis are an evolution of the wildly successful Redline classic ski with a

They are durable and stay better within the kick-zone than other klisters

Available in standard lengths and strokes and are a great upgrade for riders looking for a performance upgrade over their stock air suspension

Optis Tubeless Tire Insert - 29" x 28-40mm Insert w/ Standard Presta Valve MFPN=213035 The Redline Classic K1 isOPTIS (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 and