Entering Military service in 1983, the American Motors Hummer is synonymous with the power and mobility of today's U.S. Armed Forces. Offically designed the HMMWV (High Mobility, Multipurpose, wheeled Vehicle), its amazing versitilty allows it to perform a wide range of tasks, from basic troop carrier to a heavily armed TOW missle transport. Tamiya's R/C Model of the Hummer uses a proven shaft-driven full time 4WD system. Bathtube type frame/chassis is molded of tough engineering plastic. Four wheel drive double wishbone suspension is combined with four large capacity oil filled shock units, providing earth hugging performance during rough terrain running. The true-to-scale body shell is injected molded of high impact resin and mounted on large diameter semi-pneumatic lug pattern tires. 　 About the model Chassis Type: DF-01 Scale: 1/12 Length: 15.59 inches (396mm) Width: 8.07 inches (205mm) Wheelbase: 11.02 inches (280mm) Front Tread: 6.77 inches (172mm) Rear Tread: 6.77 inches (172mm) Weight: 4.14 lbs. (1880g) Chassis: ABS Monocoque Suspension: 4 Wheel Independent Damper Type: Plastic coil over friction Drive Train: 4WD shaft drive Gear Ratio: 11.27:1 Differential Gear System F/R: 3-Bevel Diff Differential Type: Bevel Gear Engine: Electric 540 Speed Controller: electronic speed controller (TEU-101 BK) INCLUDED. Wheels & Tires: Dish/Radial Tire Diameter F/R: both 84mm Tire Width F/R: both 40mm Body Type: Styrene (plastic) Radio: 2-Channel high performance Expec R/C system and trigger type transmitter Pistol (included) Power Source: 7.2V battery (not included) 　 　 RTR ELECTRIC XB's REQUIRE: (unless stated differently above) Battery: 6-cell flat with standard Tamiya connector Charger: AC/DC timed or peak for 6-cell battery Misc. Items: Tools (upkeep) and track equipment