We believe that Bearing Spacers should be used on every complete, no matter what type of riding the board will be used for.
Adding spacers in between your bearings will align the bearing to the inner hub of your wheel. This will effectively reduce friction and movement inside the hub of the bearing causing the energy between turns is absorbed by the wheel and not the bearing itself. This reduces impact and side load on the be bearing.
Reducing stress on your bearing components will help prevent your bearings from exploding or seizing up while riding your longboard. In addition to stress reduction, adding spacers will hold your wheels steady on your trucks during slides, removing that rattling noise you hear while rolling, as well as preventing that annoying and sometimes dangerous choppiness experienced when sliding.
One pack is enough for 4 wheels.
8 mm x 10 mm spacers will fit almost all standard longboard wheels. If you are using 10 mm axle trucks, you will need different spacers!