Traxxas gives you the versatility to lock and unlock the front and rear differentials to suit your driving needs directly from your transmitter. Leave the differentials unlocked for relaxed driving on the trail with smooth, tight turning and better handling at high speeds. When the trail gets technical, lock the front and rear differentials, or just the front, for superior grip over extreme terrain. This patented design has been proven rugged and capable in the Traxxas Summit. Sleeved micro cables control the differential action for scale appearance, without limiting the huge suspension articulation. 

Hi/Low Range Transmission 
When the going gets tough, use your transmitter to shift into low range for incredible 4-wheel drive pulling torque. Shift into high range for blasting down the trail. The plush suspension design absorbs rough terrain with ease and delivers outstanding scale appearance. Unmatched versatility makes the TRX-4 Scale and Trail Crawler adaptable to just about any situation or driving style.

Waterproof 
Traxxas was the first to bring you fully waterproof RC vehicles years ago with their innovative designs. The TRX-4 Scale and Trail Crawler is fully waterproof for how you like to really play, not “splash resistant.” There is a big difference. Traxxas’ patented innovation gives you the freedom to tackle creeks, snow, and mud without worrying about water in your electronics.

Torque Twist Eliminated 
The portal axles use gear reduction right at the wheels that dramatically reduces undesirable torque twist. Total axle gear reduction is over twice non-portal designs. The Titan 550 motor torque is translated into straight, powerful, forward motion, rather than wasted energy twisting your rig right off the rocks.

The Power of Portals 
The TRX-4 Scale and Trail Crawler is equipped right out of the box with Traxxas' game-changing portal axle set. Portal axles lift the truck at the wheels for huge center pumpkin ground clearance. In order to achieve the same clearance with straight axles (and not get stuck), your tires would have to be over an inch taller than the TRX-4's tires. Straddling boulders with ease, the TRX-4 chassis definitely takes the path less traveled and simply leaves all the others behind.

Improved Geometry 
Portal axle geometry raises the axle link mounts and center driveshaft, greatly reducing critical driveshaft and suspension link angles. This means less strain on the driveshafts, and the higher suspension links provide greater clearance with less scraping and dragging across the rocks. The steering drag link and tie rod are also raised up and out of harm's way.

Rigid Steel Frame 
A heavy-duty formed-steel ladder frame with molded cross members creates an extremely rigid backbone that 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.

Scale Detail 
Introduced in 1969, the Chevrolet Blazer was General Motors’ two-door entry into the booming sport utility market. Its shorter wheelbase and capable suspension instantly made it a favorite in the 4X4 world, earning the love of enthusiasts and collectors. Traxxas honors the rich history of the Blazer with this beautifully detailed reproduction of the 1979 K5 Blazer built on the renowned TRX-4^® chassis. Outfitted with replica Rally wheels, a highly detailed chrome grille, and a full complement of scale details, the TRX-4 Blazer combines the iconic style of the Blazer with toughness and technology that could only come from Traxxas.

Aluminum GTS Shocks 
Oil-filled coil-over GTS shocks were created exclusively for the TRX-4 chassis. These silver-anodized aluminum units deliver silky-smooth damping performance and feature threaded shock bodies for easy ride height adjustments. The convincing scale realism looks great, and they perform even better with an O-ring cap seal and dual X-ring shaft seals.

Metal Gear Digital Servo 
A full-metal gear digital servo gives you the durability and steering authority you need to confidently and reliably power through tough situations.

Cruise Control 
The Traxxas TQi radio system is equipped with cruise control for long-distance treks. Set your speed using the transmitter and then use the multi-function knob to fine-tune it faster or slower to precisely match the pace of your caravan of trail explorers. Cruise control makes it easy and comfortable for the TRX-4 Scale and Trail Crawler to be your companion for hours of driving fun and exploration.

3S Power System 
The XL-5 HV electronic speed control brings 3S LiPo capability for stronger, more efficient running. Updated speed control profiles have been added for smooth and precise control. A Trail profile facilitates smooth driving for most of your adventures, while a Crawl profile introduces hill hold and instant reverse for extremely technical courses. Either will help you navigate obstacles with ease, right from the start. Long run times, up to 2 hours, are possible with a Traxxas 3S 5000mAh iD LiPo battery pack!

Canyon Trail 1.9 Tires 
The 1.9 Canyon Trail tires and tuned foam inserts are super-soft and grippy to deliver superior bite on rocky surfaces with convincing scale realism. The 12mm steel hex drive makes the TRX-4 chassis compatible with popular 1.9 wheel and tire combinations.

Traxxas Tough 
Leave the tools in the bag! The Traxxas TRX-4 chassis is built to handle the rigors of remote locations and all-day driving fun. The foundation begins with a pair of 1.5mm thick steel frame rails. Large diameter steel links and heavy-duty, extra-wide rod ends keep the suspension firmly mounted. Hardened steel CV-style half-shaft joints are ultra-reliable, while the brushless-ready steel portal axle and transfer case gears are smooth and quiet. Traxxas’ composite materials have been refined over three decades for the ultimate in strength and durability.

Specifications: 
Length: 20.62 inches (524mm) 
Front Track: 9.78 inches (249mm) 
Rear Track: 9.78 inches (249mm) 
Ground Clearance: 3.14 inches (80mm) 
Weight: 6.26lb (2.84kg) 
Height: 10.05 inches (255mm) 
Wheelbase: 12.28 inches (312mm) 
Approach Angle: 59° 
Departure Angle: 47° 
Breakover Angle: 59° 
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) 
Hex Size: 12mm 
Speed Control: XL-5 HV 
Motor (electric): 21T Reverse Rotation 
Transmission: 2-speed Hi-Lo, Remote Shifting 
Gear Pitch: 32P 
Differential Type: 4 Gear, Remote Locking 
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: TQi™ 2.4 GHz 4-Channel Transmitter 
Receiver: TRA6533 
Skill Level: 2 
Battery Tray: 158.75 L x 47 W x 23/26mm H

Includes:

• TRX-4, Ready-To-Race model
• XL-5 HV waterproof electronic speed control
• Titan 21T reverse rotation motor
• TQi 2.4GHz radio system with cruise control
• High quality maintenance tools

Needed To Complete:

• (1) NiMH (4–7 cell) or LiPo (2S–3S) Battery Pack w/iD Connector 
• (1) Compatible Battery Charger
• (4) "AA" Batteries (for transmitter)