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The Spitfire Formula Four 101d Afterburner Red/Black Swirl Conical Full Skateboard Wheels feature unmatched abrasion resistance for hard riding, day in, day out.
Conical Full Shape – With a wide riding surface and a cutaway design, this shape has unmatched control and lasting speed everywhere.
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.
101a Durometer – Some of the hardest wheels you can get. Ideal for advanced skaters who skate fast, power slide often, and want to avoid flat-spotting.
Size (mm) | 52 | 54 | 55 |
Diameter (mm) | 52 | 54 | 55 |
Width (mm) | 32.5 |