6x13 Rubber Sealed Ball Bearings (10) 6x13x5 for Traxxas RC Vehicles 5180 Revo E-Revo Summit X-Maxx TRA5180 Rubber Sealed Ball Bearings have maximum protection, and are ideal for off-road racing. They protect well against exposure to dust, dirt, and moisture, which can destroy bearings. Includes ten (10) replacement 6x13 Ball Bearings for Traxxas RC Vehicles (or any other applications where 6x13x5mm 686 bearings are required). Advantage Bearings have been run by some of the fastest racers in the world and have won multiple ROAR US National Championships. Over 250,000 bearings have been sold to satisfied racers all over the world! Meets/Exceeds OEM Specifications for Traxxas 5180 (TRA5180) 6x13 Ball Bearings, used in many Traxxas models. Please reference your manual for required sizes and installation instructions. Known to be Compatible With: Traxxas Revo, E-Revo, Summit, X-Maxx, TRX-4