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Secure your setup with the Spitfire Formula Four 99d Hellfire Lock-Ins Skateboard Wheels.
Lock-In Shape – Asymmetrical shape and design featuring a conical cut profile opposite a straight edge side. Lock on in.
99d Durometer – Best used in a pool or park with a little more grip than harder wheels, and a little more slide than softer wheels. The right wheel for moderately skilled riders who also want to skate street when needed. Sliding is a breeze thanks to their hardness, while soft enough for a smooth roll and plenty of grip.
Formula Four Urethane – Formula Four urethane is unlike any other. Both in the streets and under high-speed stress tests in Spitfire's lab, Formula Four wheels retained more material, coned less and kept their original shapes and sizes longer than any other wheel.
Size (mm) | 52 | 53 | 54 | 56 |
---|---|---|---|---|
Diameter (mm) | 52 | 53 | 54 | 56 |
Width (mm) | 32 | 32.5 | 32.5 | 32.5 |