"The size of the engine alone is enough to scare the competitors away." R/C Car Action The GST 7.7 features the largest engine ever used in a RC Monster Truck, the 5 horsepower NX 7.7 engine. The GST 7.7 is over 30% larger than a Revo 3.3. Park the GST 7.7 next to a Savage, and the Savage doesn’t look so tough anymore. The LST2, MGT, they ran away from the new king of the dirt! The GST 7.7 features three fully sealed differentials that can be filled with silicone oil. Want to race your GST 7.7 on a track? Fill the diffs with silicone oil and start setting down some record laps. Maybe pulling wheelies and just straight drag racing is more your style. Replace the center diff gears with the included center lock and you can start pulling wheelies till your gallon of nitro is gone. The NX 7.7 features a revised recoil start assembly, a sharp looking black anodized heat sink cylinder head, and an updated crankshaft that allows for better airflow. What does this all mean for the GST 7.7?? This means increased power and increased reliability! With the NX7.7 engine, the large displacement offers brutal torque to pull those super high wheelies, climb the steepest hills, or just plain drag your buddy's weak 4.6cc powered monster truck around the backyard. But the fun doesn't stop there, not only does the GST 7.7 feature brute torque, thanks to the 3 speed transmission, the NX 7.7 engine can propel the GST up to an astounding 40mph!!! And with the GST 7.7’s reverse module, you could go 40mph in reverse or forward! The gargantuan 7.5 inch low profile tires with chrome wheels dwarf everything else out there. Along with the wheels, the truck's body has been pre painted in one of the best looking schemes to ever be included with a Ready to Rock truck. The GST 7.7 comes with an all new NX 7.7 cc engine. The new 7.7 engine is more powerful, more reliable and much more efficient. Features include an all new starting system that is made to withstand daily use and punishment. The NX7.7 now comes with a new carburetor that allows for easier tuning capabilities along with a much more fuel efficient delivery system without sacrificing power. The powerband on the new NX 7.7 is smooth yet provides more torque than any other nitro powered engine. Experience a truly powerful nitro monster truck with the GST 7.7 powered by the all new NX 7.7. Massive Wheelies on demand ! R/C Universe Online Review Video, Wallpaper, Test Reports Available R/C Car Action Review 9/06 3 Speed Forward / Reverse Transmission *Unique in 1/8 MT Braaaaaaaagghhhhh...Braaaaaaaaaaggghhhh!!!!! Yes, you heard it! The GST 7.7 comes with an automatic 3 speed transmission that is fully adjustable. This transmission allows the GST7.7 to reach speeds of 40+ mph. Aluminum Diff case with 6 gear differential * Beefiest / most durable The GENESIS now comes with a super strong Aluminum differential case that houses the ultra strong 6-gear differential. This is by far the strongest differential system ever developed in the industry. Drivetrain option 1. Active Center Diff. 2. Diff. Lock 144oz high torque servos for both steering and throttle are included. Those high torque servos are made of high qualify aluminum internal gears support by ball bearings. You will never need to spend $200 to upgrade your servos 7.5 inch Chrome wheel *Largest in 1/8 MT GST 7.7 is equipped with 7.5inch Chrome wheel with V-treaded high grip tires. These wheels are anodized in shinny chrome giving GST 7.7 an unique look and stand out from the ordinary white wheels. All new "MTM" Metal brake system *MTM brake system scored a perfect 10 by R/C Car Action. "The Brake are awesome..." - R/C Car Action December 2005 Stopping the massive GST 7.7 is no match for the all new 4 disc metal brake system. This new system stops the powerful GST 7.7 on a dime. Features include vented brake discs along with fully adjustable front and rear brake controls. 23mm Wheel Hex *Unique in 1/8 MT CEN Racing is now applying 23mm wheel hex hubs to our GST 7.7 monster truck line. With respect to the power of the NX 76 engine, we have enlarged the wheel hex for more durability. These new wheel hex's are 23% larger then the original design. 220cc Fuel Tank *Largest in 1/8 MT GST 7.7 is equipped with Tank has a stone fuel pick up and O ring seal on the Cap. Less refueling and more Driving! 8mm CVS *Beefiest / most durable Huge heavy duty CVS (constant velocity shafts) are included. These shafts allow for better handling through bumps and best of all are super heavy duty. Made of harden steel. Durability you can see GST 7.7 use aerospace aluminum chassis components and CNC / Steel drivetrain parts throughout the truck. Heavy Duty shock towers, turnbuckle, handle bar, high impact bumper, list goes on. GST 7.7 is simply the most powerful, durable, and exciting truck ever introduced in R/C industry. 8 shocks with functional reservoirs * real functional Reservoirs These shocks are tuned for the track with our new white coated "stiff" racing springs. The functional reservoirs provide added stability for any terrain that dares to be in the GST 7.7's path. Enclosed Receiver box and battery box The GST 7.7 has a sealed Radio compartment that eliminates substances like dirt, dust, water, and oil from coming in contact with your receiver and battery. Better protection = More Fun Fully equipped with Allen Hex Screws Front, Center, and Rear differential Alloy Hinge Pin Supports Dual Vertical Chassis design (DVC) Full Precision Ball Bearings Hardened Steel 8mm (5/16inch) thick CVS High Impact skidplate bumpers (Front and Rear) Machined 1 piece motor mount with built in cooling fins Heavy Duty Spindle and caster blocks with Alloy wheel hexes