Optis Tubeless Tire Insert - 29" x 28-40mm Insert Only ModelNumber=J2618 25mm thick at the tooth

25mm thick at the tooth which fits inside most narrow 6 through 9 speed chains and the pulley cage is wide enough to allow 1/8″ single speed chains as well

Direct mount design is lighter weight than a spider version

}Park Tool BX-3 Rolling Big Blue Box

FF cleaner provides gentle glide cleaning that removes dirt and wax products so that ski bases absorb more wax and run faster

Color Black Flat Protection Sidewall TPI 60 Weight 800 Defined Color Black ISO Width (mm) 58 ISO Diameter 559 / 26" MTN Tire Intended Use Downhill Tire Intended Use Mountain Tire Diameter 26" Tire Bead Folding Labeled Size 26 x 2

Optis Tubeless Tire Insert - 29" x 28-40mm Insert Only ModelNumber=J2618 25mm thick at the toothOPTIS (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