• Diameter: 57 mm
• Width: 40.2 mm
• Riding Surface: 27.5 mm
• Hardness: 99 duro
• Formula: Formula Four
• Shape:Lock In Full
• Set of 4

FORMULA 4 – Unbeatable lasting performance SPITFIRE urethane. Fast as hell. Long lasting, abrasion resistance, smooth anti-stick slide with a controllable grip. Guaranteed.

A wider version of the Lock-In shape.
Asymmetrical design with conical cut outside for less weight.
Straight edge ‘Lock-In’ inside for control on all terrains.