WTB Trail Boss Tire - 29 x 2.25 TCS Tubeless Folding BLK Tough Fast Rolling Model=Airflex Racer Pump The 40-Series is the workhorse

The 40-Series is the workhorse of Cane Creeks headset line-up

Features a larger 13-tooth pulley

The 1x V3 chain guide provides extra security for 1x10 or 1x11 drivetrains in a lightweight durable package

SmarTube offers low weight and volume combined with a high level of reliability not available with an equivalent butyl tube

WTB Trail Boss Tire - 29 x 2.25 TCS Tubeless Folding BLK Tough Fast Rolling Model=Airflex Racer Pump The 40-Series is the workhorseWTB Trail Boss Tire 29 x 2. 25 TCS Tubeless Folding Black Tough Fast Rolling. Tight enough tread spacing for high speed drag free onslaughts yet blocky and tall enough to really dig in when it comes time to slam on the brakes. A rounded profile and staggered supported side knobs keep clamoring for traction even as the trail loses its camber. Commonly used as a rear tire with a WTB Vigilante on the front TECH SPECS Defined Color Black TPI 60 Weight 920