WTB

KOM Tough i40 27.5" TCS 2.0 Rim w/CVX

WTB KOM Tough i40 27.5" rim is a hard-use mountain bike rim built around TCS 2.0 tubeless performance, a reinforced Dual I-Beam extrusion, and CVX spoke-bed shaping for more consistent builds and higher spoke-hole durability. For riders pushing wider tires and lower pressures, it prioritizes impact resistance, dependable tubeless sealing, and long-term wheel integrity without resorting to excessive weight.

Upgrade-focused details for aggressive tubeless builds

1. Dual I-Beam Construction - Adds rim stiffness and strength for better control under load and improved resistance to hard hits and flex.
2. CVX Spoke Hole Technology - Improves spoke/nipple alignment and reinforces the spoke-hole area for stronger, more consistent wheel builds.
3. 6069 Aluminum Extrusion - Chosen for durability and solid fatigue life while keeping weight appropriate for real trail use.
4. Updated Spoke Bed Interface - Creates a more congruent nipple-to-rim contact for smoother tensioning and more reliable long-term trueness.
5. WTB TCS 2.0 Tubeless-Ready Design - Designed to be easy to mount and dependable for tubeless setups when paired with the correct tape and sealant.
6. Included WTB Solid Strip - Smooths the cavity between tire and rim and helps protect the tubeless system by preventing a broken spoke from puncturing the sealing interface and causing rapid air loss.

Note: TCS tape is still required to complete a tubeless setup.