Traxxas X-Maxx Monster Truck RTR 8S (Red)

The Traxxas X-Maxx Monster Truck delivers X-Truck scale power and capability in a ready-to-run package. This 8S-capable monster hits over 50+ mph with two 4S packs and the included optional spur gear, and it arrives with the TQi radio and full Velineon power system installed — ideal for experienced drivers who want big speed and serious durability.

Key Features

• 8S-capable power system for maximum top speed and raw acceleration.
• 50+ mph potential when using two 4S battery packs and the included optional spur gear for higher gearing.
• 5 mm motor output shaft for strong, reliable power transfer.
• Aluminum slip-on heat sink to help pull heat away from the motor under heavy use.
• Dual motor cooling fans to keep temperatures down during sustained runs.
• Traction control feature that helps prevent spinouts and loss of control in loose terrain.
• Adjustable traction assist from off up to 100% via the transmitter for on-the-fly tuning.
• Traxxas Link-enabled for telemetry, setup and model management via your mobile device.
• 2.4 GHz 5-channel micro receiver (6533) with fail-safe security and built-in telemetry ports.
• Model memory that automatically stores and loads settings for up to 30 Traxxas Link-enabled models for easy switching.
• Multi-function knob on the transmitter for quick adjustments while driving.
• Adjustable steering and throttle percentage (dual rates) so you can tailor control response.
• Built-in cooling fan on the speed control for improved thermal management.
• Adjustable steering and throttle sensitivity (exponential) to refine driver feel.
• Installed BEC voltage and motor temperature sensors for real-time monitoring.
• Quick one-hand body installation and removal using the pivoting rear latch mechanism.
• Real-time telemetry via Traxxas Link for battery, motor and ESC data while you run.
• Machined heat sinks for improved cooling over stamped or cast alternatives.
• 10-gauge silicone wiring for reliable high-current delivery.
• Integrated protection circuits inside the electronics to guard against damage.
• LED status lights for clear system feedback at a glance.
• "Big Block" brushless Velineon motor delivers massive torque and acceleration.
• 4-pole 1275 kV motor configuration tuned for X-Maxx performance.
• Heavy-duty modular composite chassis that’s serviceable and impact-resistant.
• Body design eliminates posts and clips for a cleaner look and easier access.
• Full-time shaft-driven 4-wheel drive for consistent traction in any terrain.
• All-metal gears and CVDs improve drivetrain longevity under hard use.
• Torque-Biasing Center Drive™ soaks up shocks and distributes power smoothly.
• 24 mm splined wheel hexes retained with a clip for secure wheel mounting.
• 17 mm hex on the wheel outside for common wrench fitment.
• Sealed, silicone fluid-filled differentials with large-module ring and pinion gears for durable power transfer.
• Splined outdrives secured with an external thru-bolt method for strength.
• Heavy-duty Cush Drive™ with steel spur gear to protect the drivetrain from shock loads.
• Fully machined aluminum stub axles for precise alignment and longer life.
• Splined aluminum center driveshaft for a positive connection through the driveline.
• Precision, preset gear mesh so no manual mesh adjustments are required at the factory.
• Motor retention is separate from gear mesh to simplify service and reduce gear stress.
• Interlocking front and rear bulkheads for chassis rigidity and easier access.
• Motor mounted to the rear bulkhead to eliminate gear-crunching flex under load.
• Driveline sealed inside the chassis to keep out dirt, sand and grit.
• No body clips or hook-and-loop straps — battery hold-downs pivot for fast access.
• Adjustable battery retainer to fit a range of pack sizes and provide secure retention.
• Battery tray integrated into the chassis top brace to enhance stiffness.
• Front energy-absorbing rubber bumper and lower skids front and rear for impact and abrasion resistance.
• High-strength glue-and-bead tire construction for consistent bead seating.
• Integrated nerf bars for side-impact protection when you tip or bash.
• High-output steering servo wired neatly into the RX box to keep the chassis clean.
• New servo mounting system that fully supports the case and improves durability.
• Double-shear, bearing-supported servo horn for a stronger steering connection.
• Suspension engineered to optimize travel and steering angles for stable handling.
• All critical suspension points use double-shear strength for greater damage resistance.
• High-strength steel suspension pins used throughout for long service life.
• Retention-style pin retainers designed not to loosen or back out under vibration.
• 4 mm machined pivot balls for precise articulation.
• C-hub and steering block geometry that maximizes steering angle.
• Adjustable roll center for tuning handling balance.
• Fixed, high-strength camber and toe links for predictable alignment.
• Steel upper and lower tie bars for secure linkage connections.
• Full-contact sealed bearings in exposed locations to keep contaminants out.
• Machined aluminum threaded shock bodies for consistent damping and easy rebuilds.
• Extra-large bore shock bodies with increased oil capacity for better heat tolerance and damping control.
• 5.2 mm damper shafts for strength and smooth shock action.
• Lower seal cartridges with integrated wiper seals to keep dirt out of the shock internals.
• Adjustable upper spring retainer to dial preload quickly.
• Plastic shock caps with pivot balls for dependable mounting.
• Fixed shock locations and bolted lower spring perches for consistent geometry.
• 8 x 4 x 4 inch all-terrain tires built for X-Maxx scale use.
• Large, dual-diameter wheels designed to match the tire profile and handling needs.
• Tires formulated specifically for 8S power to resist heat and wear.
• Two-piece foam inserts for reliable tire support and consistent feel.

Technical Specifications

• Model Name: X-Maxx
• Model Type: Monster Truck
• Top Speed: 50+ mph with two 4S batteries and optional spur gear
• Skill Level: 6 — best for experienced hobbyists
• Scale: X-Truck
• Weight: 19.1 pounds (8.66 kg)
• Length: 30.67 in (779 mm)
• Width: 21.3 in (540 mm)
• Front Track: 21.3 in (540 mm)
• Rear Track: 21.3 in (540 mm)
• Height: 13.79 in (350 mm)
• Wheelbase: 18.92 in (480 mm)
• Center Ground Clearance: 4.00 in (102 mm)
• Drivetrain: Shaft-driven 4WD
• Transmission: Single speed
• Differential Type: Sealed, hardened steel bevel limited-slip
• Gear Pitch: 1.0 metric pitch
• Steering Servo: 2085 digital high-torque waterproof
• Radio System: TQi 2.4 GHz transmitter with TSM receiver (model includes TQi radio)
• Battery Compartment: 197 x 52 x 44 mm
• Motor Name: Velineon 1200XL
• Motor Type: 1275 kV sensorless brushless (4-pole)
• Motor Weight: 23.44 oz (665 g)
• Motor Length: 4.32 in (110 mm)
• Motor Diameter: 1.88 in (48 mm)
• Motor Shaft: 5 mm
• Motor Connectors: 6.5 mm bullet connectors
• ESC Name: Velineon VXL-8s
• ESC Type: Brushless speed control
• ESC Case Size: 2.23 in (58 mm) / 2.83 in (72 mm) / 1.81 in (46 mm)
• ESC Weight: 7.60 oz (215.5 g)
• ESC Motor Connectors: 6.5 mm bullet connectors
• Battery Connectors: Traxxas High-Current Connectors
• ESC Power Wire: 10-gauge Maxx silicone cable

What's Included

• Traxxas X-Maxx Monster Truck RTR (Red) with factory-installed Velineon 1200XL motor and VXL-8s ESC
• TQi transmitter and compatible receiver (TSM/Traxxas Link enabled)
• 2085 high-torque waterproof steering servo installed
• Pre-mounted X-Maxx wheels and 8 x 4 x 4 inch all-terrain tires with 2-piece foam inserts
• Included optional spur gear for higher top speed

Why Choose This Truck

If you want a large-scale, high-speed monster truck that’s built to take abuse and keep running, the Traxxas X-Maxx Monster Truck is designed for that role. It pairs a powerful Velineon motor and VXL-8s electronics with a sealed, serviceable chassis and heavy-duty driveline components — perfect for experienced drivers who want big jumps, fast straights, and durable construction. Note that batteries and a charger are not included so plan to add appropriate packs and a compatible charger before your first run.