X- Formula (XF)is another industry leading innovation from the BONES WHEELS factory. X-Formula rolls over rough terrain like softer wheels do, but slides more like a harder wheel would.

Speed: X-Formulais extremely fast because it has a super high rebound. They roll much smoother and faster on all terrains because it absorbs vibration and softens impacts much better.

Grip & Slide:The slide-ability comes from its unique blend of high performance materials. X-Formula will slide when you need it to, and grip when you want it most. This is because X-Formula has been developed over a ten year period to optimize performance and fine tuned to perfection making it a very unique product.

Durability:X- Formula is smooth, fast and durable. It has been developed using the highest quality, longest lasting materials, resulting