Indoor or outdoor
Indoor wheels, such as the Bauer Court, are softer and grip smooth sports hall floors. Outdoor wheels, such as the Bauer Street, are harder and last longer on asphalt and concrete. Using indoor wheels outside wears them down quickly.
Size
Check the sizes of your current wheels before ordering. Hi-Lo chassis use two sizes, smaller at the front and larger at the back.
Rotating
Wheels wear unevenly. Swap them between positions every few sessions so they last longer.
Bearings go into the new wheels, see bearings. All parts are under inline accessories.