The TRX-4 Sport combines the unbeatable ground clearance and driving dynamics of Traxxas portal axles, sticky Canyon® Trail tires, and a lightweight pickup truck body for a leaner, performance-focused new TRX-4. The Sport’s unique bumpers, wheels, and body were designed for increased climbing versatility. Whether it’s a fun trail run or a hardcore technical crawl, the TRX-4 Sport’s capability and performance-built approach takes your outdoor adventure to a new level.
A thick 1.5mm steel ladder frame with molded cross members provides exceptional torsional rigidity to resist even the worst chassis twisting articulation. This extremely rigid backbone lets the suspension do the work it was designed to do. You’ll feel the difference on trails where the elimination of chassis flex allows for precise wheel placement when navigating technical terrain.
The innovative shock towers allow four separate “bolt-on” wheelbase positions: 300, 312, 324, and 336mm to accommodate custom body fitment. Further fine tuning is possible with the axle links and adjustable shock position.
The finer details matter so we incorporated wire retainers into the frame rails, which provide a clean look and keep the wiring more secure from off-road hazards.
TRX-4’s main battery tray accommodates a full-length 5000mAh 3-cell LiPo or 7600mAh 2-cell LiPo for extended run times or smaller 1/16 scale Traxxas batteries for reduced weight. A hinged battery strap provides quick and secure battery mounting without pins to lose in the field. The innovative strap flips over to adjust for different height batteries.
Tough floor pans protect the electronics and enhance the scale appearance of the chassis.
Oil-filled coil-over GTS shocks were created exclusively for the TRX-4 chassis to smooth out even the roughest trails. These silver-anodized aluminum shocks deliver silky-smooth damping and feature threaded bodies for easy ride height adjustment. The convincing scale realism looks great and they perform even better with an O-ring cap seal and dual X-ring shaft seals.
Exclusive to TRX-4 models, portal axles lift the differential pumpkin to provide incredible ground clearance. This radical design also improves axle geometry and reduces strain on the driveshafts. Steel gears ensure trouble-free performance, no matter how technical the climb.
On conventional rigs with the limited gear reduction in the differentials, motor torque is applied to the frame to the point of twisting you right off the rocks. The TRX-4’s radical portal axle design reduces the gear ratio at the wheels, virtually eliminating torque twist through the chassis. Total axle gear reduction is over twice non-portal designs so Titan motor torque delivers smooth forward motion, not frame twist.
Full-time locked front and rear differentials transform the motor’s torque into unstoppable climbing action. With no slippage possible, all four wheels claw with equal traction, powering the lightweight Sport over the toughest obstacles.
The single-speed transmission is geared low for the raw torque required to scale the steepest grades. Steel gears provide the Traxxas-Tough durability that keeps you on the trail.
Hardened steel U-joints on the front and rear driveshafts provide smooth, reliable power delivery for non-stop fun.
A twin friction plate slipper clutch provides some additional protection from motor stalls in extreme crawling conditions.
Black sealed ball bearings resist mud and dirt to keep your rig rolling smoothly.
TRX-4’s radical portal axle design raises the driveshafts higher to improve axle geometry and reduce driveshaft angles. Higher driveshafts and suspension links pass over obstacles to avoid high-centering your truck and reduce overall grinding wear.
The superior 45-degree steering angle negotiates around even the tightest bends with ease. This helps avoid awkward reversing maneuvers in tight spaces.
With a 58.82 degree out-of-box approach angle in the front, TRX-4 is ready to climb walls. An equally impressive 45.83 degree rear approach angle provides extreme capability, even in the deepest ruts.
Portal axles help raise the center ground clearance to an unparalleled 3.14 inches (80mm), while raised suspension links and driveshafts clear the rocks underneath. Superior capability equals more fun no matter where your adventure takes you.
The TRX-4’s large 550 size brushed 21-turn Titan motor provides smooth reliable power and loads of torque to climb the toughest obstacles. The front mounted orientation moves the weight bias forward to get you up and over obstacles with improved traction.
HV stands for compatibility with the high-voltage 3s LiPo battery packs for greater efficiency and power. In addition to the three standard profiles (Sport, Race, Training Mode®), the XL-5 HV features a Trail profile that serves up a little bit of drag brake for smooth intuitive driving for most of your adventures. A new Crawl profile introduces hill hold and instant reverse for extremely technical courses. Either will help you navigate the trail with ease.
Torque rules the trail! The TRX-4’s massive Titan 21T motor pumps out huge torque to get you up and over anything that gets in the way. An integrated cooling fan keeps temperatures down for extended run times.
A new full-metal gear digital servo gives you the durability and steering authority you need to confidently and reliably power through tough challenges.
Switch on the power and drive! That’s all there is to it with the TQ™ 2.4GHz radio system. Race multiple vehicles side by side without interference. The TQ’s advanced programming provides long-range control with smooth, glitch-free performance and it fits comfortably in the hand for extended use.
|Length:||21.93 inches (557mm)|
|Front Track:||9.78 inches (249mm)|
|Rear Track:||9.78 inches (249mm)|
|Ground Clearance:||3.14 inches (80mm)|
|Height:||9.47 inches (241mm)|
|Wheelbase:||12.28 inches (312mm)|
|Front Shock Length:||3.54 inches (90mm)|
|Rear Shock Length:||3.54 inches (90mm)|
|Front Wheels:||1.9 x 1.02 inches (49 x 26mm)|
|Rear Wheels:||1.9 x 1.02 inches (49 x 26mm)|
|Front Tires:||4.64 x 1.89 inches (118 x 48mm)|
|Rear Tires:||4.64 x 1.89 inches (118 x 48mm)|
|Speed Control:||XL-5 HV|
|Motor (electric):||21T Reverse Rotation|
|Differential Type:||Spool (no differential)|
|Chassis Structure / Material:||Steel Ladder Frame with Nylon Composite Crossmembers|
|Brake Type:||Electronic “Hill Hold”|
|Drive System:||Shaft Driven 4WD|
|Steering:||Chassis Mounted Servo|
|Servo:||2075X Metal Gear|
|Transmitter:||TQ™ 2.4GHz 2-Channel Transmitter|
|Battery Tray:||158.75 L x 47 W x 23/26mm H|
|Type:||High-torque brushed motor|
|Length:||3.071” (78mm) overall length, 2.25” (57mm) can length, 1.532” (38.9mm diameter)|
|Turns:||21T reverse rotation|
|Input Voltage:||6–7 Cells NiMH, 2–3s LiPo|
|Case Size:||1.23” W x 2.18” D x 1.04” H|
|Motor Limit:||21-turns (550 size)|
|On Resistance Forward:||0.004 Ohms|
|On Resistance Reverse:||0.004 Ohms|
|Peak Current - Forward:||100A|
|Peak Current - Reverse:||100A|
|BEC Voltage:||6.0 VDC|
|Power Wire:||14 Gauge / 5”|
|Input Harness Wire:||26 Gauge / 14.5”|
|Low Voltage Detection (LVD):||2-Stage indicators, switchable (on or off)|
|Thermal Protection:||Thermal Shutdown|
|Single-button setup:||Yes, Traxxas EZ-Set®|