There still used for skating or you can give them to a friend for spare parts.
urethane wheels
Wheels dont make a skateboard easier to turn on the skateboard trucks do that.
no
Skateboard is a piece of wood with wheels that you can do tricks and roll around in bowls on.
yes the sizes of skateboard wheels range from 40-70 mm
Bones wheels
Bearings are used to let the wheels spin freely and with minimal drag.
yes
4
Wheels
polyurathayne,
The wheels allow them to move. If you look at a skateboard it has wheels.
Skateboard companies make decks and wheels