Spitfire F4 Lock-In Wheels - 52mm 99D
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The Spitfire F4 Lock-In Wheels - 52mm 99D combine the unmatched performance of Formula Four 99D urethane with Spitfire's innovative Lock-In shape. Designed with an asymmetrical profile, the Lock-In shape features a straight inner edge that locks securely against ledges and coping, while the rounded outer edge delivers smooth turns and predictable slides.
Manufactured using Formula Four 99D urethane, these wheels provide industry-leading flatspot resistance, exceptional speed, and consistent slide characteristics. The 52mm diameter offers quick acceleration and a lightweight feel, making these wheels an excellent choice for technical street skating while remaining versatile enough for park riding.
Features:
- Official Spitfire Wheels
- Diameter: 52mm
- Durometer: Formula Four 99D
- Lock-In asymmetrical shape
- Straight inner edge for increased lock-in on ledges and coping
- Rounded outer edge for smooth turns and controlled slides
- Formula Four urethane with industry-leading flatspot resistance
- Fast roll with predictable slide performance
- Ideal for technical street skating, ledges, rails, and skateparks
Lock-In Shape – Asymmetrical shape and design, featuring a conical cut profile opposite a straight edge side so you can lock on in.
