Bones | Wheels | X-Formula Sidecuts (53mm) 97A Button Up 5mm tall for optimal performance

5mm tall for optimal performance and wheel clearance with wheels 54mm and under

Built to handle both street sessions and casual rides with reliable pop and control

Precise shaping and solid construction handle park sessions and ramps with confidence

it's built to last

sit bone and tailbone areas with our padded Impact Shorts

Bones | Wheels | X-Formula Sidecuts (53mm) 97A Button Up 5mm tall for optimal performanceBones X Formula Sidecut wheels deliver the perfect balance of speed and control. At 53mm with a 97A durometer, these 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 wheelseasier on your body and your setup. Durable, responsive, and versatile across all terrains.