This is the electric powered, radio controlled, 1/8 scale Mugen MBX6-ECO Off Road Buggy factory built kit. FEATURES: Chassis: A7075 T6 aluminum 0.12" (3mm) thick M Spec - Factory built kit Drive: Four wheel three differential shaft drive Shocks: Four oil filled 15mm aluminum body Shock Towers: 0.16" (4mm) thick carbon graphite Gearbox: Sealed, front and rear Differentials: Planetary geared Motor Mount: Two piece Transmission: Single-speed Ball Bearings: Full set Suspension: Pillow ball Body: Clear buggy type Pinion: 14T Spur Gear: 46 tooth Battery/ESC tray: Accomodates two batteries Camber Tie Rods: Adjustable, Camber describes the angle at which the tires sit vertically Steering Tie Rods: Adjustable, Caster/Toe-in is the angle at which the tires point inward as viewed from above Steering: Bell-crank type, with carbon graphite steering brace and adjustable Ackerman. Ackerman describes the effect of the inside front wheel turning faster than the outside front wheel during turns INCLUDES: Mugen MBX6-ECO Off Road Buggy Kit with clear buggy body, rear wing, decal sheet, window mask sheet, battery/ESC tray, 14t pinion and illustrated instrucion manual REQUIRES: Motor: 1/8 scale brushless motor ESC: 1/8 scale brushless motor compatible ESC Radio: 2-channel with standard servo for throttle Building and track equipment SPECS: Vehicle Length: 18" (457mm) Width: 12-1/8" (309mm) Wheelbase: 12.5 - 12.75" (320 - 325mm) Gear Ratio: 11.12:1 Weight: 7.4lb (3,370g) Body- Length: 13" (330mm) Width: 6.9" (177mm) Height: 3.9" (101mm) COMMENTS: For replacement Ball Bearings use: Qty. Size Location Qty. Bearing Set 6 8x16mm Fr/R/Center Diffs 3 DTXC1585 4 8x16mm Fr/R Gear Cases 2 DTXC1585 2 8x16mm Front Hubs 1 DTXC1585 2 15x21mm Front Hubs 1 ASCC6862 2 8x16mm Rear Hubs 1 DTXC1585 2 15x21mm Rear Hubs 1 ASCC6862 ajw 3/23/11