This is the 2.4GHz TQi radio controlled, electric powered, ready to run, 1/10 scale Traxxas E-Revo Brushless Edition Racing Monster Truck. Factory installed and programmed Castle Creations Mamba Monster ESC and Brushless Motor System. FEATURES: Chassis: Nylon composite 0.08" (2mm) thick, gray in color with integrated and scalable dual battery compartments accomodate sport packs up to 6S LiPo packs, quick release battery doors and cooling vents Drive: Four wheel shaft drive with decals and window mask Motor: Castle Creations 2200kV with 5mm rotor shaft, aluminum motor can and neodymium magnets Motor Mount: Heavy duty finned cast alloy Motor Batteries: Two Traxxas 7-cell 3000mAh NiMH Power Cell batteries with high-current connectors Radio: Traxxas TQi 2.4GHz high output with Traxxas Link automatic model recognition, telemetry enabled 5-ch micro receiver with dual channel 1 inputs, #6510 Docking Base is included and enables model to be tuned from an iPhone 3G/3GS/4/4S, or iPod Touch 2nd/3rd/4th generation (Traxxas Link App must be downloaded if wanting to use an iPhone or iPod Touch) Electronic Speed Control: Castle Creations Mamba Monster with 6S LiPo power capability, high-efficiency heatsink and cooling fan, 6.5mm diameter high current connectors Shocks: Oil filled with hard anodized bodies with TIN coated shafts Transmission: One speed, low CG, oversized steel idler gear Differentials: Sealed, limited slip Ball Bearings: Full set Wheels: 3.8" (97mm) wide, 5-spoke black chrome Gemini Tires: 3.8" (97mm) wide Talon Suspension: Sealed pivot ball Steering: Dual servo Body: Painted and trimmed, adjustable rear wing 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: Adjustable, camber refers to the angle of the tops of the tires from vertical when when viewed from front or behind vehicle INCLUDES: Traxxas E-Revo Racing Monster Truck with brushless motor, two 7-cell NiMH batteries, TQi radio, docking base, ESC, painted body, decals and instruction manual REQUIRES: Transmitter Batteries: Eight AA Charger: NiMH compatible, high-current connector adapter (DTXC2222) is required if using Duratrax Onyx charger listed in Accessory Completion Guide SPECS: Vehicle- Length: 22.9" (582mm) Width: 16.5" (419mm) Height: 8.3" (210mm) Wheelbase: 14" (358mm) Ground Clearance: 3.9" (99mm) Weight: 9.5lbs (4330g) without batteries Front Track: 16.4" (416mm) Rear Track: 16.5" (419mm) outer edges of wheels side to side Body- Length: 19.8" (504mm) Width: 7.1" (181mm) at widest point Height: 4.8" (121mm) COMMENTS: The included TQi Docking Base allows the user"s iPhone 3G/3GS/4/4S or iPod Touch 2nd/3rd/4th generation along with the Traxxas Link App to deliver an intuitive, high definition graphical user interface featuring Real Time Telemetry, Customizable Dashboards, Steering/Throttle Expo, Steering/Braking Dual Rate, Servo Reversing, Endpoint Adjustment, Profile Customization and Sharing. The E-Revo with Castle Creations Motor System is available in the following colors; Blue TRAD03BB Black TRAD03LL Red TRAD03RR Silver TRAD03SS All original bearings used in the E-Revo are rubber shielded. The following list includes the rubber shielded bearings and the non-shielded DuraTrax brand as an economical alternative. For Replacement Ball Bearings use: DuraTrax Traxxas Qty. Size Location Qty Bearing Set Qty Bearing Set 2 12x18mm Fr Hubs 1 DTXC1597 1 TRAC5120 2 6x13mm Fr Hubs 1 DTXC1573 1 TRAC5180 2 12x18mm Rear Hubs 1 DTXC1597 1 TRAC5120 2 6x13mm Rear Hubs 1 DTXC1573 1 TRAC5180 2 10x15mm Differentials 1 DTXC1595 1 TRAC5119 2 8x16mm Differentials 1 DTXC1585 1 TRAC5118 4 6x12mm Differentials 2 DTXC1569 2 TRAC5117 4 5x11mm Transmission 2 DTXC1547 2 TRAC5116 2 6x12mm Transmission 2 DTXC1569 2 TRAC5117 jml 12/27/10 ir/jxs