CST Ouster - 29 x 2.25 - Black 2021 A 300 Series Alpha Aluminum

A 300 Series Alpha Aluminum frame with a full carbon fork

Some of the lightest lock on grips for XC racing

Weatherproof

Rally power meters have undergone rigorous testing to increase reliability

MasterMind seamlessly integrates with the Mission Control app for range optimization tools

CST Ouster - 29 x 2.25 - Black 2021 A 300 Series Alpha Aluminum29x2. 25 Push the standards of all mountain freeride tires with the beefed up BFT from CST. The BFT (Big Fat Tire) has it where it counts meaty center and side knobs to dig in on tight turns and tough climbs. Available with wire or folding bead with EPS (Exceptional Puncture Safety) puncture protection.