Traxxas XMaxx 8S







Insightful engineering and precise integration of innovative solutions set the Traxxas XMaxx 8S in an all-new category of superior performance. It’s as satisfying and rewarding to use as it is fun and exciting to drive. Ripit RC offers RC Financing options for the Traxxas XMaxx 8S, including low monthly payments

SKU: 77086-4 Category:


Traxxas XMaxx 8S

Unrelenting 4X4 power, mammoth size, and award-winning innovation make Traxxas XMaxx 8S the ultimate monster truck. With 30+ volts of extreme 8S power, The Traxxas XMaxx 8S defies physics, unleashing jaw-dropping acceleration and 50+mph speeds. Engineered to conquer the most extreme terrain and take brutal real-world punishment in stride, X-Maxx is the definition of Traxxas Tough.

Size Wins

At the end of the day, size always wins. The Traxxas XMaxx 8S plows over obstacles and muscles through extreme terrain that leaves lesser trucks stranded. Mammoth 8-inch tall tires, long-arm suspension, and huge ground clearance dwarf the surroundings for virtually unstoppable monster truck fun.

Extreme Power

At Traxxas, too much power is never enough! The durability of the new VXL-8s is matched only by the sheer ferocity of its 8s 30+ volt dual LiPo muscle. The speed-tuned 1200XL Big Block motor propels the Traxxas XMaxx 8S with brutal authority and exacting quickness that warps your senses. No matter what you have driven in the past, nothing will prepare you for the Traxxas XMaxx 8S

Maxx Duty Drive-Train

The Traxxas XMaxx 8S puts the power to the ground through tough all-steel drivetrain gears, the revolutionary Cush Drive system, and our strongest driveshafts ever. The all-new Torque-Biasing Center Drive improves driveline durability and drives larger module ring and pinion gears on the toughest differentials we have ever produced.


The full X-Maxx experience of strength, power, and agility relies on all the carefully engineered details that begin to emerge when you peel back the layers. Old conventions were discarded as every system and dimension was examined and taken to a level worthy of the Maxx® legacy.

INCLUDES: RTR XMaxx 8S Truck with Brushless Motor, Radio, ESC, Painted Body, Quick Start Guide and Maintenance Tools


• Batteries: Two 4S LiPo 5000mAh or greater

• Battery Charger: Compatible with selected LiPo batteries

• AA Cells: For for transmitter LiPo Charging Bag .

We offer RC Financing on the XMaxx 8S



Battery & Charger




  • Velineon VXL-8s Brushless Power System
  • VXL-8s Waterproof Electronic Speed Control
    • 8s LiPo compatible
    • Built-in cooling fan
    • Machined heat sinks
    • 10-gauge silicone wire
    • Integrated protection circuits
    • LED status lights
  • Velineon 1200XL Brushless Motor
    • “Big Block” brushless motor
    • 4-pole 1275 kV
    • 5mm output shaft
    • Aluminum slip-on heat sink
    • Dual motor cooling fans
  • 50+ MPH with Two 4s LiPo Batteries and Included Optional Pinion Gear
  • Traxxas Stability Management
    • Helps prevents spinouts and loss of control
    • Adjusts from off to 100% assistance from the transmitter
  • TQi™ 2.4GHz High Output Radio System
    • TQi™ 2.4GHz transmitter
    • Traxxas Link enabled
    • TQi™ 2.4GHz 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—just switch on and drive, “model selection” is not required
    • Multi-Function knob
    • Adjustable steering and throttle percentage (dual rates)
    • Adjustable steering and throttle sensitivity (exponential)
    • Adjustable steering and throttle end points
    • High 13ms frame rate and near-zero latency for responsive control
    • Telemetry-ready 5-channel micro receiver with dual channel-1 inputs
    • BEC Voltage and Motor Temperature Sensor installed
  • New Body Mount System
    • Quick one-hand installation and removal
    • Uses pivoting rear latch mechanism
    • Eliminates body posts and clips
  • Drivetrain
    • Full-time shaft-driven 4-wheel drive
    • All-metal gears and CVDs
    • Torque-Biasing Center Drive™ absorbs shocks and distributes power
    • 24mm splined wheel hexes
    • Wheel hexes retained with a clip
    • 17mm hex on outside of wheel
    • Sealed, silicone fluid-filled diffs with large module ring and pinion gears
    • Splined outdrives attached with external thru-bolt method
    • Heavy-duty Cush Drive™ with steel spur gear
    • Fully machined aluminum stub axles
    • Splined aluminum center driveshaft
  • New Motor Mounting System
    • Precision, preset gear mesh adjustments
    • No manual gear mesh adjustments are required
    • Motor retention separate from gear mesh
  • New Modular Composite Chassis
  • Rigid Chassis Structure
    • Modular chassis design interlocks with front and rear bulkheads
    • Motor mounts to rear bulkhead to eliminate gear crunching flex
    • Easy to service and access components
    • Driveline is sealed in the chassis to keep out dirt and grit
  • New Battery Retention System
    • No body clips or hook and loop straps
    • Battery hold-downs pivot for easy access
    • Adjustable for battery size
    • More secure than conventional retention systems
    • Integrated into chassis top brace for improved battery tray and chassis stiffness
  • New Steering Bell Cranks and Servo Saver
    • New high-output steering servo
    • Wired directly into the RX box, no external wires seen on chassis
    • New mounting system to fully support case
    • Double-shear, bearing supported servo horn
  • Suspension
    • Engineered to optimize suspension travel and steering angles
    • All critical suspension points have double shear strength
    • High strength steel suspension pins used throughout
    • Suspension pins retainers won’t come loose or “back-out”
    • 4mm machined pivot balls
    • C-hub and steering block geometry maximizes steering angle
    • Adjustable roll center
    • Fixed, high-strength camber and toe links
    • Steel upper and lower tie bars
    • Full contact sealed bearings used in exposed locations
  • New GTX Shocks
    • Machined aluminum threaded body
    • Extra-large bore and capacity
    • 5.2mm damper shaft
    • Lower seal cartridge includes integrated wiper seal combination
    • Adjustable upper spring retainer
    • Plastic shock caps with pivot balls
    • Fixed shock locations
    • Lower spring perches bolted on
  • Bumpers
    • Front energy absorbing rubber impact bumper
    • Lower front and rear skids for impact and abrasion resistance
    • Integrated nerf bars for side impact resistance
  • Wheels/Tires
    • 8x4x4 inch all-terrain tires
    • Large, dual diameter wheels
    • Specifically formulated 8s rubber compound
    • 2-piece foam insert
    • High-strength glue and bead design


Traxxas Stability Management (TSM): Superior tuning algorithms run on high-speed electronic components to control wheel spin and steering direction on loose dirt, concrete and even ice and snow. TSM can be fine tuned or turned off by adjusting the multi-function knob on the TQi transmitter or the slider in the Traxxas Link app

Chassis: Composite nylon tub, modular design provides easy access to critical components, lower front and rear skids and integrated nerf bars for front, rear and side impact protection, rear wheelie bar Drive Four wheel shaft drive, Max Duty drivetrain with new high- strength precision steel gears, new ring and pinions use a larger module and special alloys, new impact absorbing Cush Drive handles massive torque and replaces the slipper clutch new Torque-Biasing Center Drive with cast alloy construction is tuned for instant punch off the line, and improved front and rear power distribution

Brushless Motor: Velineon 1200XL 1200kV, 0.196″ (5mm) diameter output, aluminum heat sink

Motor Mount: Cradle design eliminates flexing, keyed pins lock gear mesh in place

Radio: 2.4GHz TQi transmitter with 5-ch micro TSM telemetry ready receiver, BEC voltage and motor temperature sensors installed, self righting button, built-in fail safe, can be equipped with the TQi Docking Base along with the iPhone, iPad or iPod touch* to create a graphical user interface for the vehicle Traxxas Link TQi Wireless Module required (not included)

Steering Servo: High-torque with aluminum heat sink, double shear bearing supported servo horn

Electronic Speed Control: Velineon VXL-8s 8S LiPo compatible

Transmission: Single speed

Differentials: Sealed hardened steel bevel gear, oil filled, limited slip

Battery Retention System: Integrated into chassis top brace for greater rigidity, eliminates body clips or hook and loop straps, adjustable for different batteries

Body: ProGraphix painted and trimmed

Body Mount System: Quick one-hand body installation and removal, pivoting rear latch mechanism eliminates body posts and clips

Suspension: Captured high-strength steel pins, double sheer connections, adjustable roll center

Shocks: GTX aluminum bodied, oil-filled, integrated wiper seal keeps shafts clean reducing seal wear

Shock Towers: Composite plastic construction, also serve as carrying handles and level supports when vehicle is placed upside down

Tires: Aggressive all-terrain tread 8 x 4 x 4″ foam inserts

Wheels: 3.4 x 5.7 inches (87 x 145mm), 17mm hexes

Steering: Bellcrank Bumpers: Front and rear composite plastic with impact cushions behind each bumper to soften blows and add to durability

Ball Bearings: Sealed, full contact

Radio Box: Waterproof

Vehicle; Length: 29.84″ (758mm)

Front Track: 22.26″ (540mm)

Rear Track: 20.66″ (525mm) distance from outer edges of wheels measured side-to-side

Ground Clearance: 4″ (102mm)

Weight: 19.1lbs (8.66kg)

Ride Height: 13.79″ (350mm)

Overall Drive Ratio: 8.24

Wheelbase: 18.92″ (480mm)

Shock Length: 7.4″ (187mm)

Battery Tray Dimensions: 7.7 x 2 x 1.7″ (197mm x 51.5mm x 44mm)

Body; Length: 27.7″ (705mm)

Width: 9.2″ (234mm) behind front wheels, narrowest point 11″ (279mm) at rear wheels, widest point

Height: 7.1″ (180.3mm)




X-Maxx 8s (77086-4) Manual – English

Parts List

X-Maxx 8s (77086-4) Parts List

Exploded Views

X-Maxx 8s (77086-4) Body Assembly Exploded View

X-Maxx 8s (77086-4) Chassis Assembly Exploded View

X-Maxx 8s (77086-4) Front Assembly Exploded View

X-Maxx 8s (77086-4) Modular Assembly Exploded View

X-Maxx 8s (77086-4) Rear Assembly Exploded View


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