X-Maxx 8S Ultimate Ready to Run (BlueX) (TRA77097-4-BLUEX)

The Traxxas X-Maxx Ultimate delivers unmatched strength, precision, and performance in a monster truck platform built for serious off-road action. Featuring over $1,000 in aluminum upgrades and premium components, the 2025 edition takes the X-Maxx legacy to new heights with bold new graphics, upgraded axles, and the most powerful steering servo Traxxas has ever installed in a production model.

Designed for extreme durability, the X-Maxx Ultimate includes high-grade 6061-T6 aluminum components throughout the chassis, suspension, drivetrain, and steering system. From aluminum differential housings and motor mounts to caster blocks and transmission covers, every major load-bearing part has been reinforced for maximum strength under the most punishing conditions. Precision-machined steel gears, ultra-heavy-duty driveshafts, and TUBES toe links further enhance reliability and performance.

This truck comes ready to perform with a factory-installed 1200XL Big Block brushless motor and VXL-8s waterproof electronic speed control, delivering over 50 mph of raw 8s LiPo power. Belted Sledgehammer tires provide incredible traction and stability across all terrain types, while massive 8.4-inch diameter and open-block tread design maximize grip and ground clearance without clogging with debris.

The X-Maxx Ultimate also includes a TQi 2.4GHz radio system with a pre-installed Wireless Module and real-time telemetry sensors. Connect your mobile device via the free Traxxas Link app to monitor speed, RPM, battery voltage, and adjust driving parameters such as throttle sensitivity and braking strength on the fly. The system offers a customizable, full-color dashboard to fine-tune performance in real-time.

With its aluminum GTX shocks featuring TiN-coated shafts and threaded adjustment rings, the X-Maxx Ultimate is engineered to absorb massive impacts while maintaining responsive handling. A high-torque 2085RL metal-gear servo delivers 650 oz-in of torque to power the massive Sledgehammer tires with authority, and a rigid aluminum bellcrank assembly ensures steering remains precise and dependable.

Other premium features include aluminum wheelie bar wheels with sealed bearings, machined pinion and spur gears, and a unique ProGraphix body with reinforced structure for added durability. The X-Maxx Ultimate stands at the pinnacle of monster truck engineering, blending style, strength, and high-end performance in a Ready-To-Race package.

Included in the box is the X-Maxx Ultimate RTR model with pre-installed Big Block brushless motor and VXL-8s ESC, TQi radio system with Wireless Module, Quick Start Guide, and high-quality maintenance tools. Required for operation are dual 4-cell LiPo batteries (Traxxas recommends part 2890X or completer pack 2997), a compatible 4s LiPo charger, and four AA alkaline batteries for the transmitter.

• High performance 6061-T6 aluminum upgrades including C-hubs, steering blocks, rear hub carriers, differential housings, and motor mounts
• VXL-8s waterproof electronic speed control with 8s LiPo compatibility, built-in cooling fan, machined heat sinks, 10-gauge silicone wire, integrated protection circuits, and LED status lights
• Velineon 1200XL 4-pole 1275 Kv brushless motor with 5 mm output shaft, aluminum slip-on heat sink, and dual motor cooling fans
• Capable of 50+ MPH with two 4s LiPo batteries and optional gearing (sold separately)
• Traxxas Stability Management (TSM) for improved control with adjustable assistance from transmitter
• TQi 2.4 GHz 2-channel radio system with wireless module and factory-installed telemetry sensors
• 5-channel micro receiver (6533) with fail-safe security and integrated telemetry ports
• Automatically stores and loads settings for up to 30 Traxxas Link-enabled models
• Clipless body mount system with quick one-handed operation, pivoting rear latch, and reinforced construction
• 8s drivetrain with machined hardened steel pinion and spur gear, full-time 4WD, steel CV driveshafts, steel differential output cups, splined aluminum center driveshaft, and aluminum stub axles
• Torque-Biasing Center Drive absorbs shocks and distributes power
• 24 mm splined wheel hexes and sealed, silicone fluid-filled differentials with large module ring and pinion gears
• Fixed motor mounting system with rigid aluminum mounts and preset gear mesh adjustments
• Motor retention is separate from gear mesh to maintain settings
• Heavy-duty modular composite chassis with interlocking bulkheads and sealed driveline
• Motor mounts to rear bulkhead to prevent gear flexing
• Snap-lock battery retention system with pivoting hold-downs, adjustable for battery size, and integrated into chassis top brace
• Front energy-absorbing rubber impact bumper, lower skids, and integrated nerf bars for added protection
• 6061-T6 aluminum steering bellcranks and 2085RL high-output metal gear steering servo with 650 oz-in torque and 0.13 sec/60° at 6.0 volts
• Double-shear aluminum servo horn and heavy-duty servo saver spring
• TUBES 7075-T6 aluminum front toe links and double shear strength at all critical suspension points
• High strength steel suspension pins with secure retainers
• Optimized C-hub and steering block geometry for maximum steering angle
• Adjustable roll center and steel upper/lower tie bars
• Full contact sealed bearings in exposed locations
• Aluminum GTX shocks with machined threaded bodies, extra-large bore, TiN-coated 5.2 mm shafts, and integrated lower seal cartridges
• Adjustable aluminum upper spring retainers, aluminum shock caps with pivot balls, fixed shock locations, and bolted-on lower spring perches
• Massive 8.4" Sledgehammer belted tires with open tread block design, 2-piece foam inserts, high-strength glue, and dual-diameter wheels

• Model Name: X-Maxx Ultimate
• Model Type: Monster Truck
• Top Speed: 50+ mph with two 4s LiPo batteries and optional speed gear (sold separately)
• Skill Level: 6
• Scale: X-Truck
• Weight: 22.20 pounds (9.5 kg)
• Length: 30.67 inches (779 mm)
• Width: 21.3 inches (540 mm)
• Track: 21.3 inches (540 mm)
• Height: 13.99 inches (355 mm)
• Wheelbase: 18.92 inches (480 mm)
• Center Ground Clearance: 4.2 inches (107 mm)
• Drivetrain: Shaft-driven 4WD
• Transmission: Single speed
• Differential Type: Sealed, hardened steel bevel, limited slip
• Gear Ratio (Internal): 8.11 (stock, out-of-box)
• Gear Pitch: 1.0 metric pitch (Mod 1)
• Steering Servo: 2085RL metal gear ultra-high-torque waterproof
• Radio System: TQi 2.4 GHz 2-channel transmitter with wireless module
• Battery Compartment Specs: 197 mm x 52 mm x 44 mm
• Motor Name: Velineon 1200XL
• Motor Type: 1275 Kv sensorless brushless
• Motor Weight: 23.44 ounces (665 g)
• Motor Length: 4.32 inches (110 mm)
• Motor Diameter: 1.88 inches (48 mm)
• Motor Shaft Size: 5 mm
• Motor Connector Type: 6.5 mm bullet connectors
• ESC Name: Velineon VXL-8s
• ESC Type: Brushless
• ESC Case Size: 2.23 inches (58 mm) / 2.83 inches (72 mm) / 1.81 inches (46 mm)
• ESC Weight: 7.60 ounces (215.5 g)
• Motor Connectors: 6.5 mm bullet connectors
• Battery Connectors: Traxxas High-Current Connectors
• ESC Power Wire: 10 gauge Maxx Cable