Spitfire Lock-Ins Formula Four 101A
Spitfire Formula Four Lock-Ins 101A skateboard wheels combine a hard, responsive ride with the brand’s distinctive asymmetric profile.
Made from Spitfire Formula Four urethane, these wheels feature the Lock-Ins shape, with different geometries on each side. The straight inner edge creates a defined contact surface for curbs and rails, while the outer side uses a shaped conical profile.
The 101A hardness delivers a firm, direct response for skaters who prefer a precise feel. Formula Four urethane is engineered for high resistance to abrasion and flatspots while maintaining consistent performance over time.
Spitfire’s Anti-Stick Slide System promotes smooth, controllable slides. Diameter, width and contact patch vary according to the selected size, while the Lock-Ins shape, 101A hardness and Formula Four construction remain consistent across the range.
Choose your preferred size and upgrade your setup with a high-performance set of four Spitfire wheels.
Technical Features
- Spitfire Formula Four urethane
- 101A hardness
- Asymmetric Lock-Ins shape
- Straight inner edge
- Shaped conical outer profile
- Anti-Stick Slide System
- High resistance to abrasion
- High resistance to flatspots
- Set of 4 wheels
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