Length: 21.60 inches (549mm)Front Track: 14.50 inches (368mm)Rear Track: 14.50 inches (368mm)Ground Clearance: 1.92 inches (49mm)Weight: 9.7 lbs (4.4kg)Height (ride): 9.12 inches (232mm)Wheelbase: 12.96 inches (329mm)Shock Length: 4.89 inches (129.2mm)Tire Diameter: 5.51 inches (140mm)Wheels Diameter: 2.8 / 3.6 inches (71 / 91mm)Speed Control: Velineon VXL-4sMotor (electric): 540XL (2400 kV)Transmission: Single-SpeedOverall Drive Ratio: 11.86 (24 / 50)Differential Type: Sealed, hardened steel bevel, limited slipGear Pitch :Module 1.0Chassis Structure/Material: Composite Modular TubBrake Type: ElectronicDrive System: Shaft-driven 4WDSteering: Double-shear bellcrankRadio System: TQi™ 2.4GHz Transmitter with TSM® receiver™Servo:Torque: 285oz-in.Top Speed: 60+ MPH with 4S LiPo battery and optional gearing (sold separately)Skill Level: 4Battery Tray: 162mm L x 45mm W x 43mm HRequired Batteries: 4 “AA” (transmitter)What’s In The Box:?Maxx, Ready-To-Race® model with Traxxas 540XL brushless motor?VXL-4s waterproof electronic speed control with integrated telemetry?Quick Start Guide?TQi™ 2.4GHz radio system?High quality maintenance toolsWhat You’ll Need:?LiPo BatteryTraxxas recommends a 4-cell 14.8V Power Cell LiPo battery for maximum performance. A 3-cell 11.1V LiPo battery will operate the vehicle with reduced performance. NiMH batteries are not supported.?LiPo Balance Charger with iD™?AA Alkaline BatteriesFour AA alkaline batteries for the transmitter.