This is the 1/10 scale, brushless electric powered, 2.4GHz radio controlled, RTR HPI On-Road Sprint 2 Flux Touring Car with the BMW M3 Body. Chassis: 3/16" (4mm) thick plastic Drive: Four wheel belt drive Motor: HPI Flux Vektor 5900kV brushless (not 3S LiPo compatible) Radio: 2-channel HPI TF-11 2.4GHz, SF-10W waterproof steering servo and four AA transmitter batteries Electronic Speed Control: Waterproof HPI Flux Vapor, LiPo compatible and fully programmable with the USB Programming Kit (not included) Ball Bearings: Full set, rubber sealed Shocks: Oil-filled, plastic bodied Differentials: Planetary gear, sealed Transmission: Single speed with Flux optimized gearing Tires: HPI X-Pattern Racing Tire 1.02" (26mm) width, 1.9 (49mm) diameter Rear, 1.2" (31mm) width, 1.9" (48mm) diameter Wheels: Six spoke black 1.9" (48mm) diameter, 1.02" (26mm) wide Pinion Gear: Steel 48 pitch Spur Gear: 48 pitch, composite construction Body: Polycarbonate painted and trimmed with body trim and light details and clear plastic windows Bumpers: Front, foam Suspension: Fully adjustable, extra long upper links with new multiple mounting positions, and adjustable droop Ackerman: Adjustable, Ackerman describes the effect of the inner front wheel turning faster than the outer front wheel during turns 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 viewed from front or behind vehicle Steering: Bearing supported bell-crank type with servo saver HPI On-Road Sprint 2 Touring Car with the BMW M3 Body, Flux Vapor ESC, Flux Vektor 5900kV brushless motor, body, wing, 4 AA TX batteries, 2.4GHz radio w/waterproof steering servo, decal sheet, and instruction manual _ Battery: 7.2V NiMH stick pack with Dean's connector Battery Charger: To match selected battery Misc. Items: Building and track equipment VEHICLE- Length: 17" (431mm) Width: 7.5" (190mm) Height: 5" (127mm) Weight: 2.7lbs (1245g) Wheelbase: 10" (254mm) Front Track: 7.4" (187mm) Rear Track: 7.7" (196mm) side to side at outer edges of wheel Front Tread: 6.3" (160mm) Rear Tread: 6.6" (169mm) side-to-side at wheel centers Ground Clearance: 0.35" (9mm) BODY- Length: 17.4" (441mm) Width: 7.5" (190mm) Height: 4.7" (120mm) For Replacement Ball Bearings use: Qty. Size Location Qty. Bearing Set 4 5x10mm Fr Wheels 2 DTXC1535 4 5x10mm Rear Wheels 2 DTXC1535 2 5x8mm Fr Diff 1 DTXC1523 2 5x8mm Rear Diff 1 DTXC1523 2 10x15mm Fr Diff 1 DTXC1595 2 10x15mm Rear Diff 1 DTXC1595 1 4x8mm Spur Gear Mount 1 DTXC1511 2 4x8mm Servo Saver 1 DTXC1511 2 4x8mm Middle Lay Shaft 1 DTXC1511 jxs 10/20/14 ir/jxs &