Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert w/ Standard Presta Valve ModelNumber=E4694 Available in 6 fun-loving colours

Available in 6 fun-loving colours

} Features:

Design by Braulio Amado for the Cinelli art program

They are grouped according to the snow conditions:

Windproof and moisture wicking

Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert w/ Standard Presta Valve ModelNumber=E4694 Available in 6 fun-loving coloursOPTIS (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