WTB KOM Light i21 Rim - 29" Disc Black 28H. WTB's proprietary 4D spoke drilling prevents binding and lateral loading of the spokes while the spoke bed itself has been updated to provide a more compatible interface between the spoke and rim. Integration of the all-new Solid Strip the TCS 2.0 rims delivers an easy to mount and reliable tubeless system.

TCS 2.0 creates a more robust easily installed and dependable tubeless system

4D angled spoke drilling eliminates binding and lateral loading and disperses tension more evenly over a greater area