This is the glow powered, 2.4GHz radio controlled 1/8 scale, ready to run, Savage X 4.6 Monster Truck from HPI. FEATURES: Chassis: Rigid 6061 series aluminum TVP (Twin Vertical Plate) Drive: Four wheel shaft drive with heavy duty dogbones Engine: HPI F4.6 with slide valve carburetor, ABC ("A"luminum piston with a "B"rass sleeve that is "C"hrome plated), 8-port liner, 7.5mm slide valve composite body carburetor and dual stage air filter Exhaust: Tuned pipe Electric Starter: Roto Start 2 with starter shaft, 7.2V 2000mAh battery pack and AC wall charger Radio: 2.4GHz pistol grip with failsafe and waterproof servos Differentials: Planetary gear with aluminum alloy cases Shocks: Four Big Bore, oil filled nylon body Transmission: Two speed with adjustable shift points Brake: Dual disc Body: Painted GT-3 Bumpers: Composite construction Wheels: Black chrome Warlock 2.2" (56mm) wide, 3.3" (83mm) diameter with 17mm hex Tires: 3.4" (85.5mm) wide, 6.2" (159mm) diameter Caster: Adjustable, caster/toe-in refers to the angle of the front suspension when viewed from the side of the car in relation 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 Warranty: Two year limited through HPI beginning at date of purchase valid only in USA, Canada and South America INCLUDES: RTR Savage X 4.6 Monster Truck, .28 cu in (4.6cc) engine with electric starter, NiMH starter battery, charger, glow starter, 8 AA batteries, 4-way wrench, fuel bottle, extra glow plug, painted body REQUIRES: Fuel: 2-cycle glow fuel with 20% nitromethane, 16% lubricant Track equipment SPECS: Vehicle- Length: 21" (534mm) Width: 16.8" (427mm) Height: 10" (254mm) Wheelbase: 13.24" (336.5mm) Suspension Travel: 5.9" (152mm) Body- Length: 18" (457mm) Width: 7" (178mm) at rear wheels, widest point 6-1/4" (158mm) behind from wheels, thinnest point Height: 5" (127mm) COMMENTS: Available in two color schemes Red and Black, HPID44RL and Yellow and Black, HPID44YL. For Replacement Ball Bearings use: Qty. Size Location Bearing Set Qty. 4 8x16x5 FR & R gearboxes 2 DTXC1585 3 10x16x5 FR, CTR & R Diffs 2 HPIC2032 5 6x13x5 CTR gearbox 3 DTXC1573 1 8x16x5 CTR gearbox 1 DTXC1585 2 5x10x4 Clutch 1 HPIC0021 4 8x16x5 FR uprights (wheels) 2 DTXC1585 4 8x16x5 R uprights (wheels) 2 DTXC1585 jxs 03/03/11 ir/jxs