Bones | Wheels | X-Formula Sidecuts (53mm) 99A

Bones X-Formula Sidecut wheels deliver the perfect balance of speed and control. At 53mm with a 99A durometer, these harder wheels roll smooth and fast over rough terrain while maintaining excellent grip and slide characteristics. Built from high-performance materials refined over a decade, X-Formula absorbs vibration and softens impacts better than standard wheels—easier on your body and your setup. Durable, responsive, and versatile across all terrains.