Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert w/ Standard Presta Valve MFPN=WST081 Season Warm WeatherNumber of Pockets

Season Warm WeatherNumber of Pockets 0Zipper NoneGender/Age MensColor Flared ConcreteSize MediumSleeve Style ShortDefined Color Gray

please follow manufacturers recommendation for your frame/forks

model Bomber Air Inline Trunnion stroke 42

Model/Year SuperDlx Coil (A1-A2) 57

Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert w/ Standard Presta Valve MFPN=WST081 Season Warm WeatherNumber of PocketsOptis Tubeless Tire Insert 27. 5" x 28 40mm Insert w Standard Presta Valve. OPTIS (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