FEATURES: Chassis: 3mm CNC Countersunk Aluminum Drive: Four Wheel Drive Drive Type: Shaft Driven Fuel Tank: 4.2oz (125cc) w/Flip Top Top Cap Clutch: Aluminum 3-Shoe Clutch Transmission: Single Speed Bushing/Ball Bearing: Ball Bearing Full Set Included Shocks: Four Threaded Hard Anodized Shocks w/Blue Springs Main Gear: 48T Steel Gearbox: Sealed Both Front and Rear Differentials: Planetary Geared Front and Rear Brakes: Dual Steel Disk Tires: Jammin' Ripper square spike tires with foam inserts Wheels: 2.6" Yellow dish wheels Bumpers: Front High Strength Nylon 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: 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 w/Servo Saver INCLUDES: Jammin X1CR rolling chassis with Aluminum shocks, clear lexan body, tires, wheels, foam inserts, 48T steel spur gear, aluminum engine mount, X1 radio bag and instruction manual REQUIRES: Radio: 2-Channel with 2 Servos (high torque servo for steering recommended but not required) Radio Batteries: (8) AA size Engine: .21 w/rear exhaust and pilot shaft Tuned Pipe and Manifold for Rear Exhaust Glow Starter: 1.2 volt Paint: Polycarbonate for body Misc. Items: Fuel bottle, building and track equipment Fuel: 2-cycle glow fuel with 10%-15% 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 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: 15.75" (400mm) Width: 8" (203mm) Height: 5.25" (133) Weight: Wheelbase: 13.1" (332mm) (wheels on-center front-to-rear) Tread- Front- 10.25" (260mm) Rear- 10.25" (260mm) Front Track: 12" (304mm) Rear Track: 12" (304mm) Ground Clearance: 1.25" (31.75mm) Gear Ratio: Not listed Tires- Front and rear: Width: 1.6" (40mm) Outer Diameter: 4.3" (110mm) Inner Diameter: 3.1" (80mm) Wheels: Width: 1.6" (40mm) Diameter: 3.1" (80mm) Body- Wing- Length: 14-1/2" (368mm) Width: 8-5/8" (211mm) Width: 8-1/2" (216mm) Height: 2-3/8" (61mm) at sides Height: 3-3/4" (95mm)