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. TCS2.0 rims require the application of TCS tape on top of the Solid-Strip. 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. Item Specifications: Brake Compatibility: Disc Only, Rim Width (Internal): 25, Brake Track: None, Manufacturer Spec ERD (mm): 606, Material: Alloy, Valve: Presta, Color: Black, Weight: 450, Wheel Size: 29", Defined Color: Black, ISO Diameter: 622 / Road / 29", Hub Drilling: 32, Rim Material: Alloy, Tire Type: Tubeless Ready, Rim Center Offset (mm): 0,