TRX-4 CRAWLER KIT

TRX-4® Unassembled Kit: 4WD Chassis with TQi™ Traxxas Link™ Enabled 2.4GHz Radio System

Easy to follow full-color assembly manual

- True-to-scale part illustrations and ruler charts
- Helpful assembly tips and clear illustrations
Body sold separately
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)
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
Transmission
- Two speed high/low range with remote shifting
- Dual horizontal shafts
- Twin friction plate slipper clutch
- Easily removed for servicing

TQi™ 2.4GHz Radio System
- TQi 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
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 4mm threaded ends
Pre-assembled aluminum GTS Shocks
- 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
- Shock oil included in kit
Wheels and Tires
- 1.9” Canyon Trail tires with trail-tuned foam inserts
- Tough black scale wheels
- Trail tuned S1 rubber compound
- 12 mm steel hex
- Tire glue required
Sealed Ball Bearings
Hex hardware with rust-resistant black oxide coating
Requires Battery and Charger (Sold Separately)

Wheelbase:	12.28 inches (312 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, 26 mm

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 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

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