This is the 1/8 scale glow powered, radio controlled, 4 wheel drive Ofna Ultra GTP Oval Racing Kit. FEATURES: Chassis: Aluminum 0.12" (3mm) Drive: Four wheel drive Fuel Tank: 5 oz (150cc), flip top cap Muffler: Aluminum tuned pipe, black in color with header, coupler gasket and spring Air Filter: Foam with plastic housing Clutch: Three shoe clutch Transmission: Single-speed center spool Hub Extensions: 0.59" (15mm) long aluminum extensions fasten to right hubs for oval racing Ball Bearings: Full set Shocks: Four oil-filled, with coil-over springs Gearbox: Sealed front and rear Brakes: Single steel disk Tires: Four 3.03" (77mm) inner diameter, 3.85" (98mm) outer diameter 1.61" (41mm), street tread with foam inserts Wheels: White 3.42" (87mm) diameter, 1.61" (41mm) wide with 17mm hex drive Bumpers: Front, foam Suspension: Front and rear double wishbone with pivot balls 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, camber refers to the angle of the tops of the tires from vertical when viewed from front or behind vehicle Steering: Bell crank type with servo saver INCLUDES: One 1/8 scale glow powered 4 Wheel Drive Ofna Ultra GTP Oval Racing, tuned pipe with header, foam air filter, tires, tire foam, air filter, four white wheels, fuel tank, instruction manual, two 15mm right side hub extensions REQUIRES: Radio: 2-Channel with 2 Servos Radio Batteries: Twelve AA for radio Engine: .21 cu in (3.5cc) rear exhaust Glow Starter: 1.2 volt Misc. Items: Fuel bottle, building and track equipment Fuel: 2-cycle glow fuel with 20% nitromethane, 16% lubricant- Most of the fuels we carry meet or exceed the lubricant content required for optimum performance and maximum engine life. In the past, the conventional lubricant content used in fuel was 18%. But with new advanced technologies, fuels like Red Alert and O"Donnell for example, have a better quality of lubricants even though the percentages of lubricant content are lower. These high-tech lubricants provide exceptional cooling and protection. SPECS: Vehicle- Length: 20" (508mm) Width: 12.5" (317.5mm) Height: 4.5" (114.3mm) Wheelbase: 13" (330.2mm) (wheels on-center front-to-rear) Tires: Four 3.03" (77mm) inner diameter, 3.85" (98mm) outer diameter 1.61" (41mm) COMMENTS: For Replacement Ball Bearings use: Qty. Size Location Bearing Set Qty. 4 8x16x5mm Front knuckle arms DTXC1585 2 2 6x13x5mm Gearbox DTXC1573 1 4 8x16x5mm Rear suspension DTXC1585 2 2 8x12x3.5mm Gears DTXC1581 1 2 7x19x6mm Transmission DTXC1579 1 1 5x8x2.5mm Clutch DTXC1523 1 1 5x10x4mm Clutch DTXC1535 1 tlw 10/8/07 ir/jxs updt jxs 2/22/08