WTB KOM Light TCS 2.0 29" Disc Rim. Features: WTB's lightest alloy rim employs an open cavity design Sturdy AL6069 alloy produces rims strong enough for daily hammering on a trail bike Updated spoke bed provides a more congruent interface between nipple and rim TCS 2.0 rims deliver WTB's easiest to mount and most reliable tubeless system WTB Solid Strip is included with rim and provides a smooth surface between tire and rim. It also prevents a broken spoke from puncturing the tubeless system and losing air TCS tape is also required for tubeless set up Specs: Model:KOM Light i30 Internal External:30/34mm Hole:32h ERD:606mm Color:black Weight:482g