This is the electric brushed motor powered, radio controlled, ready to run 1/16 scale Traxxas E-Revo Racing Monster Truck. FEATURES: Chassis: Nylon composite construction 0.08" (2mm) thick bathtub type Drive: Four wheel Radio: Traxxas TQ 2-channel 27MHz AM with waterproof digital high- torque steering servo, waterproof receiver box, transmitter does not have charge jack Electronic Speed Control: Traxxas XL-2.5 waterproof Motor: Traxxas Titan 550 brushed Spur Gear: 45 tooth Pinion Gear: 28 tooth 48 pitch Battery: Traxxas Power Cell NiMH 6-cell 1200mAh Battery Charger: 110V wall type Body: Painted and trimmed with applied decals Bumper: Front, black chrome Shocks: GTR oil filled Suspension: Revo-spec rocker actuated long travel inboard type with telescoping universal joint shafts Transmission: Ball bearing equipped with adjustable slipper clutch Differentials: Sealed silicone filled planetary gear type Ball Bearings: Rubber sealed Caster: Non-adjustable Camber: Adjustable, camber refers to the angle of the tops of the tires from vertical when viewed from front or behind vehicle Tires: Multi terrain, with foam inserts 1.8" (46mm) wide, 3.2" (82mm) diameter Wheels: Gemini 5-spoke with grayish chrome finish 1.5" (38mm) wide, 2" (51mm) diameter, standard size 12mm hex Steering arm with spring loaded servo protection INCLUDES: RTR Traxxas E-Revo Racing Monster Truck with 2-ch radio, ESC, 550 motor, painted body, 6-cell battery, 110V charger, and instruction manual REQUIRES: AA Batteries: Eight for transmitter SPECS: Vehicle- Length: 12.9" (328mm) Width: 9.4" (239mm) Height: 4.6" (117mm) Front and Rear Track: 9.4" (239mm) distance between outer edges of wheels Wheelbase: 7.9" (202mm) Ground Clearance: 1.7" (43mm) Body- Length: 11.3" (288mm) Width: 4.3" (110mm) Height: 2.8" (71mm) COMMENTS: The ball bearings in the Traxxas E-Revo are rubber sealed. Following are the stock numbers for the replacement bearings from Traxxas and non-rubber sealed alternatives from Duratrax; Qty. Size Location Qty. Bearing Set 2 8x12mm Fr Drivshaft 1 TRAC7020 DTXC1581 2 4x8mm Fr Hubs 1 TRAC7019 DTXC1511 2 8x12mm Rear Drivshaft 1 TRAC7020 DTXC1581 2 4x8mm Rear Hubs 1 TRAC7019 DTXC1511 2 4x8mm Fr Diff 1 TRAC7019 DTXC1511 2 5x8mm Steering Bellcrank 1 TRAC6728 DTXC1523 2 4x7mm Rocker Arm Post 2 DTXC1507 4 8x12mm Differentials 2 TRAC7020 DTXC1581 4 4x8mm Differentials 2 TRAC7019 DTXC1511 6 4x8mm Transmission 3 TRAC7019 DTXC1511 2 4x8mm Rear Ring Gear 1 TRAC7019 DTXC1511 The brushed motor powered 1/16 scale Revo is available in the following body colors and radio channels; Blue A6 TRAD09BB Black A4 TRAD09LL Red A2 TRAD09RR Silver A5 TRAD09SS jxs 8/05/09 ir/jxs