This is the 1/10 scale, Tamiya electric powered, radio controlled, Autech GT-R On-Road Race Car Kit. Chassis: TT-02 ABS resin bathtub type minimizes contact with the road upright assembly can be changed to give chassis an extra 4mm of travel for Rally racing Drive: Four wheel, shaft driven, with dogbones Motor: Tamiya Torque Tuned 540 brushed with aluminum heat sink Electronic Speed Control: Tamiya TBLE02S brushless compatible Differential: Gear type Wheels: Nylon construction, black in color 12mm hex, 1.02" (26mm) wide 2.00" (51mm) diameter Tires: Slick rubber with foam inserts Suspension: Fully independent double wishbone Shocks: Plastic body, friction, not oil filled Body: Clear polycarbonate Camber: Non-adjustable, camber refers to the angle of the tops of the tires from vertical when viewed from front or behind vehicle Caster: Adjustable, caster/toe-in refers to the angle of the front suspension when viewed from the side of the car in relation to the chassis Steering: Bellcrank type Bumper: Front, urethane Tamiya Autech GT-R with 540 Brushed Motor, Tires, Wheels, Clear Body, Foam Inserts, ESC, Decals and Instructions Radio: 2-channel with high speed steering servo Battery: 7.2V NiMH Battery Charger: To match selected battery Building and track equipment Vehicle- Wheelbase: 10.1" (257mm) Length: 18.6" (472mm) Body- Length: 17.5" (444mm) Width: 7.5" (90mm) Height: 4" (102mm) To upgrade to ball bearings order; Qty. Size Location Qty Bearing Set 2 5x11mm Spur Gear 1 DTXC1547 2 5x11mm Driveshaft 1 DTXC1547 2 8x12mm Differential 1 DTXC1581 2 5x10mm Front Uprights 1 DTXC1535 2 5x10mm Rear Uprights 1 DTXC1535 jxs 11/13/15 ir/jxs &