Wheels vary in color, size and durability. The way a wheel rides depends on the diameter and durometer, which all comes down to personal preference. When it comes to diameter-Smaller wheels are slower, bigger wheels are faster.
52-55mm – Slower, but stable and good for tricks and smaller riders
56-60mm – Beginners of all sizes on ramp, park and street
60mm+ – Longboards, old-school boards, speed and rougher surfaces