This is the 1/10 scale glow powered, radio controlled, Ready To Run HPI Nitro RS4 3 with Toureza Touring Car Body.
FEATURES: Chassis: 0.098" (2.5mm) thick 6061 aluminum, purple in color Drive: Four wheel shaft drive
Engine: Nitro Star T-15 (2.5cc) with ABC construction, 2 needle rotary carburetor, glow plug, air filter and electric Roto Start engine starter
Exhaust: Dual chamber tuned pipe with tube aluminum header
Radio: Two channel 27MHz AM with steering and throttle trims, dual rate for steering and charge jack for optional NiCd battery
Servos: Two standard size and torque
Fuel Tank: 2.53oz (75cc), flip top cap
Clutch: 2-shoe
Transmission: Two-speed, adjustable
Ball Bearings: 18 rubber sealed
Shocks: Four oil-filled, with coil-over spring
Main Gear: 47 and 43 tooth composite construction main gears
Clutch bell: 22 teeth and 18 teeth gears that thread onto clutch bell
Gearbox: Sealed, front and rear
Differentials: Sealed, with metal bevel gears, limited slip front differential
Brakes: Single disc, fiber construction
Tires: D compound X-pattern 1.02" (26mm) wide, 2.5" (65mm) diameter
Wheels: Chrome plated plastic construction, 12 spoke split into
groups of two 1.02" (26mm) wide, 1.9" (50mm) diameter Body: Pre-painted and trimmed with rear wing and decals applied
Bumper: Front foam
Suspension: Four wheel independent
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
Servo Saver: Included

INCLUDES: HPI RS4 3 Toureza with oil-filled shocks, .15 engine, trimmed and painted polycarbonate body, tires, foam inserts, wheels, decals AM 27MHz 2-ch radio, Roto Start and instructions
REQUIRES: AA Batteries: 12 (8 for radio, 4 for battery box)
6-Cell Flat Battery Pack: For Roto Start
Battery Charger: For Roto Start battery
Track Equipment: Fuel bottle, glow starter
Fuel: 2-stroke glow fuel with 10%-15% nitromethane, 16% lubricant- Most of the fuels we carry meet or exceed the lubricant content required for optimum performance and maximum engine life. In the past, the conventional lubricant content used in fuel was 18%. But with new advanced technologies, fuels like Red Alert and O'Donnell for example, have a better quality of lubricants even though the percentages of lubricant content are lower. These high-tech lubricants provide exceptional cooling and protection.
SPECS: Vehicle-
Length: 14.75" (375mm)
Width: 7.9" (200mm)
Height: 4.4" (111mm)
Weight: 3.85lb (1745g) with body
Wheelbase: 10.1" (257mm)

Front Tread: 6.8" (173mm) side to side at wheel centers
Rear Tread: 7.5" (190mm)
Front Track: 7.25" (184mm) side to side at wheel edges
Rear Track: 7.9" (200mm)
Ground Clearance: 0.35" (9mm)
Body-
Length: 17.25" (438mm)
Width: 7.75" (196mm) behind front wheels
Width: 8" (203mm) at rear wheels
Height: 4.50" (114mm)

COMMENTS: For Replacement Ball Bearings use:
Qty. Size Location Bearing Set Qty.
(2) 10 x 15mm spur gear shaft (use 1-DTXC1595)
(4) 5 x 11mm front & rear gearbox (use 2-DTXC1547)
(4) 10 x 15mm front & rear gearbox (use 2-DTXC1595)
(2) 5 x 11mm front wheel hubs (use 1-DTXC1547)
(2) 10 x 15mm front wheel hubs (use 1-DTXC1595)
(4) 5 x 11mm rear wheel hubs (use 2-DTXC1547)
(2) 5 x 10mm clutch bell (use 1-DTXC1535)

It is not possible to request a specific radio channel when ordering. They are supplied by the manufacturer at random.