Bones Wheels SPF

The 84B rating is equivalent to 104a on the standard A-scale, making these wheels exceptionally hard. This hardness is designed specifically for high-speed park skating, providing minimal friction and maximum roll speed on smooth surfaces.

These are specifically engineered for skateparks. Because of their hard durometer and specialized formula, they will feel very harsh and vibrate significantly on rough asphalt or street terrain.

The SPF urethane is formulated to be highly resilient and resistant to abrasion. This allows the wheel to maintain its shape and structural integrity even when you are performing power slides or heavy tricks on smooth concrete.

Yes, the SPF formula is designed to balance speed with a predictable grip. They offer enough traction to hold a line through a bowl carve, but they are also designed to release cleanly when you want to initiate a slide.

At 53mm, these are a versatile mid-size wheel. They are generally compatible with most standard skateboard setups, but if you are riding a very low-profile board, you may want to ensure you have enough clearance to avoid wheel bite.