Sptifire Formula Four Classic Skateboard Wheels are designed by pros and built to hold up to any kind of skating. Features include the Classic Shape, a smooth surface, Formula Four Urethane construction, medium profile, and hard durometers. Sold as a set of 4.
Smooth - Smooth wheels come with a shiny coating on the riding surface that feels grippy at first, but wears away quickly.
Medium - Your classic wheel shape, versatile all-around wheel for street/park skating.
Formula Four Urethane - Unmatched abrasion resistance for fewer flat spots. More controllable grip. Lasting speed no matter the terrain. Smooth anti-slick slide and a longer lasting size and shape.
Classic Shape - The original Spitfire wheel designed and shaped by the pros who ride them.
| Durometer | |
|---|---|
| white/blue classic swirl (101d) | 101a |
| white/green classic swirl (101d) | 101a |
| white/orange classic swirl (101d) | 101a |
| white/silver classic swirl (101d) | 101a |
| white/blue classic swirl (99d) | 99a |
| white/green classic swirl (99d) | 99a |
| white/orange classic swirl (99d) | 99a |
| white/purple classic swirl (99d) | 99a |
| white/silver classic swirl (99d) | 99a |
| white/yellow classic swirl (99d) | 99a |
| natural/blue (97d) | 97a |
| Size | 52mm | 53mm | 54mm | 55mm | 56mm | 58mm |
|---|---|---|---|---|---|---|
| Diameter (mm): | 52.0 | 53.0 | 54.0 | 55.0 | 56.0 | 58.0 |
| Width (mm): | 32.0 | 33.0 | 33.5 | 35.0 | 35.3 | 35.8 |
| Riding Surface (mm): | 15.5 | 16.0 | 16.5 | 17.5 | 17.8 | 18.0 |
| Suggested Riser Size (in): | N/A | N/A | N/A | 1/8 | 1/8 | 1/8 - 1/4 |
