TRA78097-4 GRNX XRT Ultimate 4x4 8S Brushless Monster Truck
*AFFIRM Finance Offer Available on Total Purchases of $149 or More
| Part Number: | TRA78097-4 GRNX |
TRA78097-4 GRNX XRT Ultimate 4x4 8S Brushless Monster Truck
The Traxxas XRT Ultimate 8S RTR delivers uncompromising speed and performance with its upgraded Velineon® 1200XL brushless motor and aggressively tuned VXL-8s™ waterproof electronic speed control. Featuring dual cooling fans, machined heat sinks, and powered accessory ports, the ESC pushes the motor to reach speeds of 60+ mph with dual 4s LiPo batteries. Traxxas Stability Management® (TSM) enhances control without limiting throttle, ensuring straight-line performance even on low-traction surfaces.
The XRT Ultimate is built with 6061-T6 aluminum upgrades throughout C-hubs, steering blocks, rear hub carriers, differential housings, and motor mounts for increased strength and rigidity. Its X-Maxx® Spec 8s drivetrain features hardened steel gears, splined aluminum center driveshaft, and laser-etched CV driveshafts for full-time 4WD power. With Maxx® Spec differentials, a Torque-Biasing Center Drive, and a rock-solid motor mounting system, every drivetrain component is designed for serious off-road abuse and massive torque handling.
The XRT boasts WideMaxx® suspension arms, GTX™ aluminum race shocks, and TUBES 7075-T6 toe links, combining ultra-wide stance and rugged suspension geometry with smooth, race-ready damping. A 2085RL high-output servo delivers 650 oz-in of torque paired with aluminum bellcranks and a double-shear servo horn, offering precise and responsive steering. With adjustable roll centers, sealed bearings, and dirt-evacuation channels, this monster truck is ready for aggressive cornering and all-terrain control.
The ultra-low center of gravity (CG) chassis offers increased stability and modular design for easy servicing. Dual snap-lock battery compartments secure your packs while protecting them from side impacts. The ProGraphix® clipless body includes cooling ducts, a rigid frame, and molded reinforcements for durability. Reinforced bumpers, nerf bars, and a heavy-duty wheelie bar with a carry handle add protection and style. The truck rolls on 7.4-inch Gravix™ belted tires mounted to 3.8-inch XRT race wheels, providing sharp turn-in, low noise, and virtually no ballooning at high speeds.


| Name: | XRT Ultimate |
|---|---|
| Type: | Monster Truck |
| Top Speed: | 60+ mph with dual 4S LiPo batteries and optional gearing (sold separately) |
| Skill Level: | 5 |
| Scale: | X-Truck® |
| Weight: | 21.55 pounds (9.79 kg) |
| Length: | 31.41 inches (798 mm) |
| Width: | 23.43 inches (595 mm) |
| Front Track: | 23.43 inches (595 mm) |
| Track: | 23.43 inches (595 mm) |
| Height: | 10.15 inches (258 mm) |

| Name: | Velineon® 1200XL |
|---|---|
| Type: | 1275 Kv sensorless brushless |
| Weight: | 23.44 ounces (665 g) |
| Length: | 4.32 inches (110 mm) |
| Diameter: | 1.88 inches (48 mm) |
| Shaft Size: | 5 mm |
| Connector Type: | 6.5 mm bullet connectors |

| Name: | Velineon® VXL-8s |
|---|---|
| Type: | Sensorless brushless |
| Case Size: | 2.23 inches (58 mm) / 2.83 inches (72 mm) / 1.81 inches (46 mm) |
| Weight: | 7.60 ounces (215.5 g) |
| Motor Connectors: | 6.5 mm bullet connectors |
| Battery Connectors: | Traxxas High-Current Connectors |
| Power Wire: | 10 gauge Maxx® Cable |