This is the radio controlled, electric powered ready-to-run, 1/12 scale Mini-Trophy Desert Truck from HPI. FEATURES: Chassis: Nylon tub with inner roll cage Drive: Four wheel shaft Radio: HPI TF-1 27MHz 2-channel pistol grip with SF-1 steering servo Motor: HPI Firebolt 540 size, 15 turn Electronic Speed Control: HPI SC-15 with reverse (HPIM0341) Differential: Metal planetary gears Spur Gear: Composite construction 87 tooth, 48 pitch Pinion Gear: Steel construction 18 tooth, 48 pitch Ball Bearings: Full set Shocks: Composite body, oil-filled Body: Three-piece DT-1 painted and trimmed with race team graphics, realistic interior with two driver figures and two non-functional spare tires in bed of truck Suspension: 4-wheel independent with aluminum front and rear uprights Tires: Licensed Yokohama Geolander 1.3" (34mm) wide, 3.7" (94mm) diameter with foam inserts Wheels: Matte chrome finish 1" (26mm) wide, 2.2" (54mm) diameter 12mm hex Bumpers: Front and rear skid plate type 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 Warranty: Two year limited through HPI beginning at date of purchase. Warranty valid only in the USA, Canada and South America. INCLUDES: RTR Mini-Trophy Desert Truck, 27MHz radio, steering servo, motor, ESC body and instruction manual REQUIRES: Battery: 6-cell NiMH stick pack with Standard connector Battery Charger: NiMH compatible, peak type AA Batteries: Eight for transmitter SPECS: Vehicle; Length: 21" (533.4mm) Width: 9" (233mm) Wheelbase: 12.3" (312mm) Height: 6.4" (162mm) Body; Length: 18.5" (470mm) Width: 6.8" (174mm) behind front wheels, narrowest point 8.3" (210mm) at front fenders, widest point Height: 4.8" (123mm) COMMENTS: For Replacement Ball Bearings use: Qty. Size Location Qty. Bearing Set 2 10x15mm Fr Uprights 1 DTXC1595 2 5x11mm Fr Uprights 1 DTXC1547 2 5x11mm Fr Diff 1 DTXC1547 2 5x11mm Rear Diff 1 DTXC1547 1 5x11mm Spur Gear Assembly 1 DTXC1547 1 10x15mm Spur Gear Assembly 1 DTXC1595 2 10x15mm Rear Uprights 1 DTXC1595 2 5x11mm Rear Uprights 1 DTXC1547 jxs 07/07/10 ir/jxs