Traxxas Revo 3.3 W/Rpm Arms Upgradenitro Off Road Econo Power Bearings TRAXXAS REVO 3.3 W/RPM ARMS UPGRADE NITRO OFF ROAD Econo Power RC Car & Truck Bearings Kit Components: QTY.1:MR85-ZZC , QTY.14:MR115-ZZC , QTY.4:MR686-ZZC , QTY.4:MR696-ZZC , QTY.1:MR126-ZZC , QTY.1:MR688-ZZC , QTY.2:MR6700-ZZC , QTY.4:MR6801-ZZC