Wheel Bearing Spacers 8mm (3 sets)
Bearing Spacers - What are their purpose? When the axle nut is tightened down properly, they insure that when the wheel is rolling, the bearings remain parallel to each other. In effect, the spacer sort of connects the inner rings of the bearings.
Why is this good?
Because the bearing is actually designed to spin around the inner ring. Also, if the bearings are held parallel to each other, they don't get tweaked in opposite directions when you are riding. Also, if the axle nut is tightened down firmly, the bearing will not move sideways in the wheel.
Spacers reduce the side-load applied to your bearings when in a slide, and also ensure that your bearings are spinning uniformly. Good spacers will completely eliminate wheel vibrations and chatter caused by janky loose bearings. The result will be more consistent and predictable slides.
12 x Bones Bearing Spacers (3 sets)