Bones Sharknado Wheels - SPF Formula - P5 Sidecut 81B

The Bones Sharknado SPF Formula P5 Sidecut Wheel with 81B hardness is the secret weapon for skateboarders who dominate the skatepark. The exclusive Skatepark Formula (SPF) — available only in BONES wheels — is a very high-quality urethane, specifically developed to resist flatspotting on smooth or polished surfaces, while maintaining a high level of rebound for quicker responses and faster rolling. The 81B hardness on the Shore B scale is approximately equivalent to 101A on the conventional scale.

The P5 Sidecut shape ensures maximum optimization for speed and control on any skatepark obstacle. The SPF formula is not available from any other wheel supplier in the world — it's an exclusive BONES differentiator that represents decades of research and engineering applied to skateboarding. Get yours at BoardHouse and feel the difference that real quality makes in your skating.

• Hardness: 81B (Shore B Scale — approx. equiv. ~101A)
• Exclusive SPF (Skatepark Formula)
• P5 Sidecut shape — maximum speed and control
• Resistant to flatspotting on smooth and polished surfaces
• Ideal for skateparks and smooth surfaces