Product description
RC Ball bearings should be your first upgrade,More durable and higher precision
It reduces friction for rolling resistance, which means higher speed and longer running time.
RC Ball bearings Hardly need maintenance and have longer service life.
RC ball bearings for racing cars have the lowest resistance.
They are made of high quality alloys, pre-lubricated to ensure their high quality performance!
8 X 13 X 3.5mm/0.31X 0.51 X 0.13inch