4-Wheel Drive Monstrous Nitro Power
The Kyosho USA-1 GP 1/8 4WD ReadySet Nitro Monster Truck is a modern tribute to the iconic Nitro USA-1. Originally setting the benchmark for monster truck power and performance in 1990, this latest iteration surpasses its predecessor in every aspect. This impressive ReadySet package requires only the addition of batteries, nitro fuel, and a glow plug heater to be ready for action, delivering an upgraded experience with enhanced capabilities.
About the USA-1 GP
Axles & Suspension
The reinforced axle housing excels under high-power and rough road conditions, improving crash resistance. It offers the ability to add optional rear-wheel steering, creating a true AWS (All-Wheel Steering) system for enhanced dynamic steering options reminiscent of early monster trucks. The truck's 5-link suspension platform controls the rigid front and rear axles to minimize drive loss, delivering superior traction and handling over uneven and varying surfaces. Additionally, large-capacity oil shocks reliably absorb impacts from the running surface, ensuring a smooth ride.
Drivetrain
The USA-1 GP excels with differentials taken from a World Champion 1/8-scale off-road car, featuring metal ring, pinion, and spider gears to manage the power of its 25-class (approx. 4.2cc) engine. These differentials provide smooth, stable driving by balancing the rotational differences between tires. The truck's 3-speed automatic transmission maximizes engine torque across various speeds, optimizing low-speed torque with first gear and covering medium speeds with second gear for smooth, efficient acceleration. This high-performance setup ensures exceptional traction and power management.
Engine
The KE25SP2 engine is a powerhouse, designed with an easier-to-adjust low-speed needle that enables it to generate even more power than its predecessor, the KE25SP engine. This advanced engine features a convenient pull starter, eliminating the need for a starter box. Additionally, the engine settings have been meticulously optimized at the factory, ensuring peak performance right out of the box.
Features:
- Pre-assembled chassis with R/C system installed and finished body. Includes pistol-grip Synchro KT-231P+ transmitter.
- 5-link suspension in combination with shaft-type 4WD delivers exceptional stability over rough roads
- Equipped with waterproof KS5031-09MW servos that incorporates durable metal gears
- Ultra-realistic scale body has been recreated under license of USA-1, including the signature color scheme
- Optional LED light set shines bright with LED head & tail lamps and rooftop fog lamps (not included)
- Equipped with KE25SP2 engine with easy needle setting
- Includes break-in ring to get the engine safely prepared for harder running
- Gleaming polished tuned muffler is equipped as standard
- Front center drive features a telescopic universal shaft to ensure high drive efficiency and prevent shaft dropout issues
- Optional 4WS (four-wheel steering) increases turning power. A wide range of other options is also available (not included)
Includes:
- (1) USA-1 GP 1/8 4WD ReadySet Nitro Monster Truck
- (1) Pre-cut and painted body complete with decals
- (1) 2.4GHz Syncro KT-231P+ transmitter
- (1) L-shaped hex wrench
- (1) Cross wrench (large)
- (1) 17mm wheel wrench
Needed To Complete:
- (4) AA-size batteries for transmitter
- (4) AA-size batteries for receiver
- Glow fuel for models
- Fuel bottle
- Plug heater
Specifications:
| Length |
22.4" (570mm) |
| Width |
17.7" (450mm) |
| Height |
11.0" (281mm) |
| Wheelbase |
14.1" (360mm) |
| Weight |
176oz (4,990g) |
| Gear Ratio |
15.6:1 |
*Tech Note: Ready-to-Run models come equipped with all electronics and include the transmitter needed for use. Please check the "Needed To Complete" above to make sure you have everything you need to get out and enjoy your RC model.
