Yeah Racing Ball Bearing Set with Bearing Oil For Tamiya TT02 - YB0274MX
Ball bearings should always be your first RC upgrades since they reduce friction for less rolling resistance, and that means higher speed and longer running times. RC ball bearings hardly require maintenance and last a lot longer than stock Oilite bushings.
Yeah Racing RC Ball Bearings have the lowest resistance. They are manufactured with Aircraft quality steel and pre-lubricated to ensure excellent performance.