TRX-4 Technology and Innovation-Now Available as a Kit!TRX-4® set the standard for off-road versatility with its radical design and rugged durability. The TRX-4 chassis kit combines the same innovative features as the RTR vehicle with the fun and excitement of building your own kit. Build your own portal axles, high/low range transmission, and remote-locking differentials. All the parts are organized neatly in labeled bags along with waterproof electronics and pre-assembled shocks and suspension links. A fully illustrated color manual makes the kit as much fun to construct as it is to take off-road.
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Easy Assembly Instructions The TRX-4 Chassis Kit includes a full-color instruction book that’s easy to follow and fun to use. Each section corresponds to a labeled bag with step-by-step assembly instructions. True-to-scale part illustrations and ruler charts make it easy to differentiate between different screws, bearings, and gears. | Ready to Assemble The TRX-4 Chassis Kit arrives ready to assemble with a full-color instruction guide, TQi™ 4-channel 2.4 GHz radio system, and complete waterproof electronics including servos, XL-5™ HV ESC, and Titan® 21T motor. Key parts like shocks and suspension links come pre-assembled to make building easy and fun. |
Features:Easy to follow full-color assembly manual True-to-scale part illustrations and ruler charts
Helpful assembly tips and clear illustrations
Trail-tuned XL-5™ HV Waterproof Electronic Speed Control Fully waterproof design
Five drive profiles
Sport Mode — forward / brake / reverse
Race Mode — forward / brake / no reverse
Training Mode™ - 50% forward / 100% brake / 50% reverse (patented)
Trail Mode — forward / brake / reverse / with trail-tuned drag brake in neutral
Crawl Mode — forward / instant reverse - no neutral with 100% hill holding brake
Traxxas EZ-Set® one-button setup
Large, efficient heat sink
Wide voltage latitude 6–7 cell NiMH (7.2–8.4 V) and 2–3s LiPo (7.4–11.1 V)
Two stage low voltage protection (LVD)
Powerful Titan® 21T reverse rotation motor Internal cooling fan
Precise, preset gear mesh adjustments
Motor retention separate from gear mesh
Portal Axles Increase ground clearance (3.14″)
Eliminate torque twist
Steel gears
Improve axle geometry and reduce strain on driveshafts
TQi™ 2.4 GHz Radio System 4-channel transmitter
5-channel micro receiver (6533) with fail-safe security and integrated telemetry ports
Compatible with optional TQi Traxxas Link Wireless Module (6511) to access full Traxxas Link app functionality (sold separately)
Automatically stores and loads settings for up to 30 Traxxas Link enabled models
Exclusive Cruise Control feature for extended trail driving
Adjustable steering and throttle sensitivity (exponential)
Adjustable steering and throttle endpoints
Patented waterproof receiver box with easy-access plug
Rigid Steel Frame 1.5 mm thick steel frame rails increase torsional rigidity
Innovative design allows four wheelbase positions (300 mm, 312 mm, 324 mm, 336 mm)
Adjustable rear shock tower positions for SWB and LWB configurations
Bumpers adjust fore and aft
Rugged rock rails adjust for width
Wire routing clips integrated into frame rails
Innovative Battery Compartment Hinged battery strap allows quick and easy battery access
No pins to lose
Accommodates different height batteries
Accepts full-size long battery packs
Integrated compartment accepts smaller 1/16 scale batteries (with optional strap)
Drivetrain Full-time shaft driven 4-wheel drive
Tough 6 mm stub axles
Steel front CV driveshafts
Hardened steel rear axle shafts
Remote locking steel gear differentials with cable-actuation
Steel gear transfer case
Transmission Two speed high/low range with remote shifting
Dual horizontal shafts
Twin friction plate slipper clutch
Easily removed for servicing
Steering Chassis mounted 2075X metal gear digital servo
Superior 45° steering angle
Direct steering (no servo saver)
Steering geometry corrected for bump steer
Suspension Front — 3 link with panhard
Rear — Triangulated 4 link
Heavy-duty rod ends with steel hollow balls
5 mm diameter steel link rods with 4 mm threaded ends
Aluminum GTS Shocks Oil-filled coilover GTS shocks
Silver-anodized aluminum bodies
Threaded bodies with collars easily adjust ride height
Silky smooth damping for the toughest trails
O-ring cap seal and dual X-ring shaft seals
Wheels and Tires 1.9″ Canyon Trail tires with trail-tuned foam inserts
Pre-glued and mounted to tough black scale wheels
Trail tuned S1 rubber compound
12 mm steel hex
Sealed Ball BearingsHex hardware with Rust-Resistant Black Oxide CoatingRequires Battery and Charger (Sold Separately)Required to Complete:Battery
Charger
Body
Paint
Assembly
Specifications:![]()
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