This is the Traxxas Nitro Sport Ready-to-Run 1/10 scale Stadium Race Truck with TQ Traxxas Pistol Grip Radio and On-Board Push Button EZ Start System, TRX Pro.15 Engine and Pre-painted Body (see listing below). This kit is based on the Nitro Rustler. ****As of 6/05/06 the Nitro Sport has the following new features;**** New Six Color Body Graphics EZ-Start Controller with Electronic Diagnostics Rubber Sealed Bearings Chrome TRX Pro-Star Wheels with Pre-Glued Tires Updated Owner"s Manual Grey Ultra Shocks with White Powder-Coated Springs High-Torque Steering Servo ****As of 1/28/09 the Nitro Sport has the following new features;**** Five color ProGraphix body with bolt-on wing Alias dual pin rear tires and ribbed front tires with foam inserts Twin Spoke chrome wheels Pre-Painted Bodies: TRAC50A2-Red and Silver TRAC50A4-Black and Silver TRAC50A5-Silver TRAC50A6-Blue and Silver FEATURES: (RTR) Ready To Run with radio system installed T-6 flat aluminum chassis rear and black fiber composite front Countersunk holes under the chassis Fiber composite upper plate/front brace 4 composite oil-filled Ultra shocks with white powder coated springs 4-wheel independent suspension Telescoping U-joint drive shafts 281 Magnum, 6 (5x11mm) ball bearing transmission with adjustable slipper clutch and planetary gear differential with steel internal gears 75cc fuel tank with flip-top lid and primer bulb Adjustable turnbuckle tie-rods Composite black tuned pipe with pressure fitting Disc brake (composite) Fiberglass front hinge pin brace (tie bar) Five color ProGraphix painted body with bolt-on wing Twin Spoke 2.2" wheels Alias dual pin rear tires and ribbed fron tires with foam inserts Single point steering Black colored composite parts Front and rear bumpers Pre-installed servo saver on servo Black composite cover for the receiver and receiver battery box Servo reversing and trim on radio Air filter (one stage, bell shaped) Ballon type receiver cover 2.5 ounce (75cc) fuel tank with rubber mount cushions Pre-painted polycarbonate body with rear spoiler Push button EZ start system with battery and charger powered by a 6-cell battery (not included) that heats glow plug and starts the engine with an on-board motor. 2-shoe clutch system TRX Pro.15 engine w/ round alum heatsink (non-anodized) head foam bell type air filter, ball bearings, short crankshaft, ABC construction, easy adjust two needle carburetor, on-board electric motor start system and glow starter, starter, tuned pipe, glow plug, metal throttle arm, aluminum piston with oil groove, channeled beam conecting rod TQ pistol grip 2-channel radio system with servo reversing, trim adjustments, receiver battery box, switch harness, 70/30 or 50/50 throttle neutral, standard throttle servo and high- torque steering servo,red light power indicator (low when flashing) SPECS: Length: 17.27" (439mm) Front track: 12-1/2" (318mm) Rear track: 12-3/8" (314mm) Weight: 62 ounces (without radio) Height: 6" (152mm) Wheelbase: 11.313" (287mm) Wheel diameter: 2.2" Fuel capacity: 2.5 ounces (75cc) Engine: TRX Pro.15 Gear ratio: Adjustable 8.43:1 to 12.64:1 Differential: Planetary gear type (not ball) Brake: Disc Chassis: Double-decked (aluminum and composite) Spur gear: 70 black nylon tooth (32 pitch) Clutch bell: 20 tooth black steel (32 pitch) Castor block front 30 degrees INCLUDES: One TQ pistol grip radio One Nitro Sport assembled with TRX-Pro .15 and two glow plugs One Pre-Painted ProGraphix Body and Spoiler One Decal sheet One EZ start module with battery and 110V charger One Black plastic shock collars and pistons One Antenna tube and cap Six 5x11mm ball bearings in transmission Eight 5x11mm metal bushings for wheels Two 5x10mm bearings for clutch One Extra receiver cover balloon One Instructions One Window mask sheet One fuel bottle REQUIRES: 12 "AA" batteries Fuel COMMENTS: For ball bearings use: 8- 5x11mm for wheels (DTXC1549 10 pack) 6- 5x11mm for transmission 2- 5x10mm for clutch (DTXC1535 2 pack) Optional ball differential TRAC4420 and slipper clutch TRAC9615 Traxxas engines run much hotter than "normal" engines (O.S., ASP, Thundertigre, etc.). Therefore, Traxxas recommends their Top Fuel (TRAP5010) and their glow plug (TRAG3230) to run the engine cooler. REPLACING EZ STARTER WITH STANDARD RECOIL STARTER To convert the EZ-Starting system to a standard "pull-starter", purchase TRAG4070 take out the three bolts on the EZ-Starter, and install recoil starter. ir/jl updt jxs 4/08/03