US$ 339.50
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Converts geared bikes to single speed and bolts into most vertical dropouts in minutes
OPTIS (Odyssey Pneumatic Tire Insert System) is a lightweight highly tunable high-efficiency tubeless tire insert
Hybrid all-terrain tire with a continuous center line paired with open shoulders for low rolling resistance with dependable off road traction
Model Circus Description 20x110mm Axle
Propel Advanced 1 Size:M Converts geared bikes to singleMaximize your watts during sprints, breakaways and solo attacks. This aero road machine is built to give you a real advantage against the wind. Because small gains lead to big wins.