Gallery

Specs

Features

What's Included

Parts Finder

Exploded Views

Support

MODEL SPECS

Model Name:	TRX-4 2021 Bronco
Model Type:	Trail / Crawler
Model Skill Level:	1
Scale:	1/10
Weight:	6.42 pounds (2.91 kg)
Length:	22.98 inches (584 mm)
Width:	9.78 inches (249 mm)
Front Track:	9.78 inches (249 mm)
Rear Track:	9.78 inches (249 mm)
Height:	9.4 inches (239 mm)

Wheelbase:	12.8 inches (324 mm)
Center Ground Clearance:	3.14 inches (80 mm)
Drivetrain:	Shaft-driven 4WD
Transmission:	2-speed high/low, remote shifting
Differential Type:	4 gear, remote locking
Gear Pitch:	32 pitch
Servo(s):	2075X metal gear, digital high-torque waterproof
Radio System:	TQi™ 2.4 GHz 4-channel transmitter with 6533 receiver
Battery Compartment Specs:	159 mm X 47 mm X 23 mm

MOTOR SPECS

Motor Name:	Titan^® 21T Reverse Rotation
Motor Type:	High-torque brushed motor
Motor Weight:	8.47 ounces (240 g)
Motor Length:	3.07 inches (78 mm) overall length, 2.25 inches (57 mm) can length
Motor Diameter:	1.53 inches (39 mm)
Motor Shaft Size:	3 mm
Motor Connector Type:	Bullet

ESC SPECS

ESC Name:	XL-5™ HV
ESC Type:	Brushed
ESC Case Size:	1.23 inches (31 mm) / 2.18 inches (55 mm) / 1.04 inches (26 mm)
ESC Weight:	2.60 ounces (74 g)
Motor Connectors:	Bullet
Battery Connectors:	Traxxas High-Current Connector
ESC Power Wire:	14 gauge

Officially Licensed 2021 Ford^® Bronco Body

Two-tone paint with black roof and clear windows
LED-ready headlights and tail lights with multi-function capability
Scale details

Black molded grille with white Bronco logo
Replica hood cowl w/ wipers and folding mirrors
Replica spare tire mount
Replica door handles
Tough PVC fender flares, wheel wells, and floor pans
Front and rear Bronco bumpers with skid plate and replica winch

Clipless Body mounting

Clipless design for smooth body appearance
Rugged internal body cage for added rigidity
Body details mount directly to internal frame

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)

Titan^® 550 Motor

Powerful Titan 21T reverse rotation motor with internal cooling fan
Precision, 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

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)
Secondary front battery tray 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 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

Replica black 2021 Bronco wheels
Pre-mounted 1.9″ Canyon Trail tires with trail-tuned foam inserts
Trail tuned S1 rubber compound
12 mm steel hex

Sealed Ball Bearings
Hex hardware with rust-resistant black oxide coating
Requires Battery and Charger (Sold Separately)

Learn More

An Off-Road Legend Returns

The legend is back. After 25 years, the Bronco has returned as Ford’s^® top-performing 4X4 and America’s most sought-after SUV. Traxxas has captured the eagerly-anticipated Bronco in exacting detail with all the capability and versatility of the award-winning TRX-4^®. The Traxxas Bronco combines Ford-approved realism and class-leading performance for exciting off-road adventure no matter where the trail takes you.

Video

Innovation

Radically innovative technology combines with precision engineering to create a completely new breed of scale crawler…Only from Traxxas.

Stunning Scale Detail

Injection-molded door handles, mirrors, and fender flares plus a functional spare tire deliver incredible realism. Unique “Trail Sights” extend to the LED-ready grille, and rugged replica bumpers feature a fairlead, tow hooks, and receiver hitch.

Clipless Body Mounting System

The Bronco introduces a new level of realism and convenience to the TRX-4. Traditional posts and body clips are gone and instead, an integrated quick-release system secures the body invisibly. The hidden mechanism holds tight on the trail yet releases in just seconds to access the chassis.

TRX-4 Capability

The features that make TRX-4 an award-winning favorite are all built into the Bronco. That includes high-clearance portal axles; remote-operated T-Lock differentials; high/low 2-speed transmission; aluminum GTS shocks; steel ladder frame…and more.

The Power of Portals

Portal axles lift the truck at the wheels for huge center pumpkin ground clearance. In order to achieve the same clearance with straight axles, your tires would have to be over an inch taller than the tires on the TRX-4 Bronco.

Torque Twist Eliminated

The portal axles use gear reduction at the wheels to virtually eliminate torque twist. The Titan^® 550 motor’s torque translates into straight, powerful, forward motion, rather than wasted energy twisting your rig right off the rocks.

TRX-4 Chassis

TRX-4 Bronco instantly obsoletes the status quo with greatly expanded features, versatility, and capability. Performance and technology combine in a revolutionary new chassis that looks as good as it performs.

Rigid Steel Frame

A heavy-duty formed-steel ladder frame with molded cross members creates an extremely rigid backbone. You’ll feel the difference on trails when navigating technical terrain.

GTS Aluminum Shocks

Oil-filled coil-over GTS shocks deliver silky-smooth damping performance and feature threaded aluminum shock bodies for easy ride height adjustments. The convincing scale realism looks great and they perform even better.

3s Power System

The XL-5™ HV electronic speed control brings 3s LiPo capability for stronge efficient running. The powerful 21T Titan^® motor provides torque to tackle the steepest climbs and all-out speed on flat terrain. This efficient system provides up to 2 hours of run time with a Traxxas 3s 5000 mAh LiPo battery pack!

TQi™ Radio System

Operate the 2-speed transmission and T-Lock diffs with a touch, and activate Cruise Control to hold the throttle for long-haul comfort—it’s all built into the TQi. You can even customize settings via smartphone with the 6511 Wireless Module.

Waterproof Electronics

TRX-4 Bronco shrugs off mud, snow, and streams with its waterproof electronics. The speed control and servos are waterproof, and the receiver is fully protected by a watertight enclosure. TRX-4 delivers all-season, all-weather adventure.

Accessory LED Lighting Available

Take Bronco’s realism to the next level with the optional Pro Scale^® Advanced Lighting System. The waterproof system adds fully functional lighting front and rear, including brake and reverse lights, turn signals, multiple driving modes, and much more. Learn more about Pro Scale Lighting >

Chassis

Driveline

Geometry

Electronics

Scale Details