142x «2025-2027»

Because the axle threaded into the exact same position every time, disc brake rotors were always perfectly centered between the pads.

The 142x system solved these issues by fundamentally changing how the wheel mounted to the frame. Instead of resting in open slots, the hub was placed into a closed loop system. A thick, threaded 12mm axle was inserted through the frame on one side, passed directly through the center of the hub, and threaded into the frame on the opposite side. This created a solid, continuous beam across the rear triangle. Because the axle threaded into the exact same

By tying the left and right chainstays together with a solid metal cylinder, rear-end lateral flex was virtually eliminated. A thick, threaded 12mm axle was inserted through

Yet, the legacy of 142x remains monumental. It was the catalyst that proved thru-axles were not just for heavy downhill racing bikes, but belonged on every trail and cross-country mountain bike. Today, the principles pioneered by the 142x mountain bike standard have even become the universal norm for modern gravel and disc-brake road bikes. It stands as a masterclass in how a small, millimeter-scale adjustment in engineering can fundamentally change the handling, safety, and capability of an entire sport. Yet, the legacy of 142x remains monumental

The closed-loop design made it physically impossible for the rear wheel to eject from the frame while riding.