From its origins—roller-skate wheels attached to a wooden board—the skateboard has given rise to a vibrant culture of art, music, and sport. Used by surfers when there were no waves to ride, the ...

But a roller skate’s wheels are small so they can fit under your feet, but they are wide enough to help you balance. Wheel and axle mechanisms can be used in other ways as well, like in this ...

Related: How To Choose the Right Size Skateboard Okay ... and place one bearing on the truck axle. From there, you'll push ...