


Spitfire Wheels F4 OG Classic 56mm 99a
99a Durometer – More speed and control on all surfaces. Unmatched flatspot resistance. Smooth, anti-stick ride. High-rebound compound.
Formula Four Urethane – Formula Four urethane is unlike any other. Unbeatable lasting performance Spitfire urethane. Fast as hell. Long lasting, abrasion resistance, smooth anti-slick slide with a controllable grip, guaranteed*.
High Rebound Compound
| SIZE | WIDTH | RIDING SURFACE |
| 51MM | 31.1MM | 21.2MM |
| 52MM | 31.1MM | 21.4MM |
| 53MM | 31.7MM | 21.8MM |
| 54MM | 32.3MM | 22.2MM |
| 55MM | 33MM | 22.6MM |
| 56MM | 33.6MM | 23.1MM |
| 58MM | 34.8MM | 23.9MM |
| 60MM | 36MM | 24.7MM |
*All wheels are sold and packaged as a set of 4.