Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert w/ Standard Presta Valve ModelNumber=E4694 100mm wheels available in speeds

100mm wheels available in speeds 1

} Features:

Works with other brands single chainrings as well

They are grouped according to the snow conditions:

4 Flange No Lock On Yes Shape Ergonomic Color Yellow Mellow Weight 115 Defined Color Yellow Size Large

Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert w/ Standard Presta Valve ModelNumber=E4694 100mm wheels available in speedsOPTIS (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