The 22mm is for lighter skaters about 75-180lb
The 24mm is for heavier skaters about 150-250lb
22mm, 110mm size weight 4.7 oz, 134 grams
22mm, 100mm size weight 4.1 oz, 116 grams
24mm, 110mm size weight 5.0 oz, 140 grams
24mm, 100mm size weight 4.3 oz, 126 grams
Race Tip: They are perfect for smooth surfaces like the roller-dome.com surface, smooth concrete. They are also very good outdoors, the wear is not as good as bont wheels, but AM-wing's are very fast. Know for the accurate bearing mounts too, no bearing snap or wheel wobble. The inner black ring aligns the bearings for you. Same as the Tarmac T2. The Am-wing are better in the roller-dome.
Race Tip: NOTE: The 24mm width is better for the roller-dome since this sticks better than the 22mm versions. more wheels on the floor provides better grip.