This is the Electric Powered, 2.4GHz Radio Controlled, 1/10 scale, Ready-to-Run RS4 Sport 3 On-Road Car with the BMW M3 E30 Body. Chassis: Plastic Drive: Fully enclosed four wheel shaft Radio: HPI TF-11 2.4GHz Motor: HPI 15T Firebolt Electronic Speed Control: Waterproof SC-3SWP2 with Tamiya type battery connector Differentials: Sealed metal gear, capable of handling brushless power Suspension: Double wishbone Wheels: Fifteen52 Turbomac vintage style, white in color Tires: Treaded rubber Ball Bearings: Complete set Battery: HPI Plazma 7.2V NiMH 2000mAh with Standard connector Battery Charger: AC powered wall type Battery Compartment: Holds standard LiPos and up to 7-cell NiMH batteries Front Bumper: Foam HPI RS4 Sport 3 On-Road Car with BMW M3 E30 Body, Radio, ESC, Motor Battery, Charger, and Instructions AA Batteries: Four for transmitter Track and maintenance equipment Vehicle; Length: 16.9" (430mm) Width: 7.9" (200mm) Wheelbase: 10" (255mm) Body; Length: 17.1" (434mm) Width: 7.5" (190mm) Height: 4.9" (124mm) For Replacement Ball Bearings use: Qty. Size Location Qty. Bearing Set 2 6x10mm Drive Set 1 DTXC1561 2 5x11mm Fr Uprights 1 DTXC1547 2 3x8mm Mount Set 1 HPIC2014 1 5x8mm Spur Gear 1 DTXC1523 jxs 05/11/14 ir/jxs &