The Traxxas TRX-4 Sport is a technical powerhouse purpose-built from the ground up to conquer any terrain. The Sport packs in all the features necessary for crawling while keeping weight as low as possible. Portal axles provide unprecedented ground clearance with the smooth damping action of aluminum GTS shocks. The lightweight body keeps the CG low for sure-footed climbing and permanently locked differentials transform the motor’s torque into unstoppable forward motion. Built Traxxas-Tough, the Sport adds a dedicated hardcore crawler to the powerful TRX-4 lineup.
 
What You’ll Need:
Batteries
TRX-4 accepts a wide variety of NiMH (4–7 cell) and LiPo (2s–3s) batteries.
Charger
Traxxas EZ-Peak Live charger is recommended for easy and fast charging performance (model #2971).
AA Alkaline Batteries
Four AA alkaline batteries for the transmitter.
 
Tough, Lightweight Pickup Truck Body
Low profile bumpers for increased clearance
Red differential covers and D-rings
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 (7.2–8.4V) and 2–3s LiPo (7.4–11.1V)
Two stage low voltage protection (LVD)
Motor
Powerful Titan™ 21T reverse rotation motor with internal cooling fan
Precise preset gear mesh adjustments
Motor retention separate from gear mesh
Portal Axles
Increase ground clearance
Eliminate torque twist
Steel gears
Improve axle geometry and reduce strain on driveshafts
Rigid Steel Frame
1.5mm thick steel frame rails increase torsional rigidity
Innovative design allows four wheelbase positions (300mm, 312mm, 324mm, 336mm)
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
Drivetrain
Full-time shaft driven 4-wheel drive
Tough 6mm stub axles
Steel front CV driveshafts
Hardened steel rear axle shafts
Spool-locked front and rear differentials
Steel gear transfer case
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)
Transmission
Single-speed with steel gears
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
5mm diameter steel link rods with 4mm threaded ends
Aluminum GTS Shocks
Oil-filled coilover GTS shocks exclusive to TRX-4 chassis
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
Rugged black 5-spoke wheels
Pre-mounted 1.9” Canyon Trail tires with trail-tuned foam inserts
Trail tuned S1 rubber compound
12mm steel hex
TQ™ 2.4GHz 2-channel transmitter
Patented O-Ring Sealed Watertight Receiver Box Keeps the Micro Receiver Dry
Sealed Ball Bearings
Hex Hardware with Rust-Resistant Black Oxide Coating