This is the 1/10 scale, electric powered, radio controlled Ferrari 643 Racing Car kit from Tamiya. FEATURES: Chassis: FRP construction F104W double deck with 0.08" (2mm) upper, and 0.12" (3.2mm) lower deck Drive: Two wheel direct with stainless steel rear shaft Differential: Ball type with resin housing Motor: 540 size brushed Ball Bearings: Full set Body: Clear, polycarbonate Bumper: Front, resin Steering: Two-piece tie-rods, Isometric steering rod links with longitudinally mounted steering servo position Suspension: Front, kingpin coil with spacers for ground clearance adjustment, Rear, T-bar with carbon friction plate and friction shock Tires: Foam racing slicks, Front; 2.1" (54mm) diameter, 1" (26mm) wide, Rear; 2.5" (65mm) diameter, 1.6" (40mm) wide Wheels: Black plastic, Front: 1.4" (36mm) diameter, 1.2" (31.3mm) wide, Rear: 1.4" (36mm) diameter, 1.8" (45.1mm) wide 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 Camber: Non-adjustable Spur Gear: Plastic, 63 tooth, 06 module Pinion Gear: 14 tooth metal INCLUDES: Tamiya Ferrari 643 Racing Car kit, clear body, decals, wheels tires, motor and instructions REQUIRES: Radio: 2-channel, small ESC and receiver recommended, standard servo Radio Batteries: Eight AA Battery: 6-cell stick pack with Tamiya type connector Battery Charger: Peak type recommended Building and track equipment SPECS: Vehicle- Length: 18.1" (461mm) Width: 8.1" (205mm) Height: 3.7" (94mm) Weight: 28.2oz (800g) Body- Length: 14.5" (368mm) Width: 6.25" (159mm) Height: 2.7" (68mm) COMMENTS: For Replacement Ball Bearings use: Qty. Size Location Qty. Bearing Set 2 6x10mm Rear Shaft 1 DTXC1561 2 8x12mm Ball Diff 1 DTXC1581 1 5x11mm Diff Housing 1 DTXC1547 4 5x10mm Front Wheels 2 DTXC1535 4 5x10mm Rear Wheels 2 DTXC1535 jxs 05/17/11 ir/jxs