Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert w/ Standard Presta Valve ModelNumber=E4694 }Zipp Cognition Disc-Brake QR Rear

}Zipp Cognition Disc-Brake QR Rear End Cap Set for XDR Freehub Bodies

Design by Braulio Amado for the Cinelli art program

Color Black Rim Width (Internal) 30 Brake Track None Wheel Size 27

Available in 6 fun-loving colours

}RideWrap Essential Toptube Frame Protection Kit - Gloss

Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert w/ Standard Presta Valve ModelNumber=E4694 }Zipp Cognition Disc-Brake QR RearOPTIS (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