WTB KOM Tough Rim TCS Tubeless Disc

The 35mm internal width is optimized for wider, high-volume tires, typically ranging from 2.4 to 3.0 inches. If you are running narrower cross-country tires, this rim will likely be too wide and may cause the tire profile to flatten out, negatively affecting cornering performance.

The Solid Strip is a durable plastic liner that sits in the rim's central channel underneath your tubeless tape. It prevents the tape from sagging into the spoke holes under high pressure, which makes seating tires easier and ensures a more reliable, long-lasting tubeless seal.

While it is technically possible, the KOM Tough is engineered for durability and aggressive riding, meaning it is heavier than a dedicated XC rim. If your priority is saving weight for racing, you might find this rim overbuilt, but if you prioritize strength and impact resistance, it is an excellent choice.

No, the 4D drilling simply angles the spoke holes to align with the hub flange, which reduces stress on the spokes and nipples. You can use standard spokes and nipples with this rim without any compatibility issues.

No, this rim is designed exclusively for disc brake systems. It does not have a machined braking surface on the sidewalls, so it cannot be used with rim brakes.

The AL 6069 alloy is a premium material that offers a higher strength-to-weight ratio than standard 6061. This allows the rim to be exceptionally durable and resistant to dents and impacts without adding unnecessary bulk to your wheelset.