Traxxas TRX-4 1/10 Scale Trail Rock Crawler with TQi 2.4GHz Radio System (Unassembled Kit) - TRX82016-4

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Traxxas TRX-4 1/10 Scale Trail Rock Crawler with TQi 2.4GHz Radio System (Unassembled Kit)

The Traxxas TRX-4 Scale and Trail Crawler chassis kit offers the same innovative features as the RTR vehicle, combined with the fun and excitement of building your own kit. Build your own portal axles, high/low range transmission, and remotely locking differentials. All the parts are organised neatly in labelled bags with waterproof electronics and pre-assembled shocks and suspension links. A fully illustrated colour manual makes the kit as much fun to construct, as it is to take off-road.

The TRX-4 chassis kit isn’t just for expert hobbyists. Traxxas goes the extra mile to make the full-colour instruction book easy to follow and fun to use. Each section corresponds to a labelled 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. Helpful assembly tips and clear illustrations take the frustration out of the assembly process. Have fun on the workbench and on the trail with the new TRX-4 chassis kit.


  • Easy to follow full-colour assembly manual
  • Trail-tuned XL-5 HV Waterproof Electronic Speed Control
  • Powerful Titan™ 21T reverse rotation motor
  • Full-time shaft driven 4-wheel drive
  • Tough 6mm stub axles
  • Steel front CV driveshafts
  • Hardened steel rear axle shafts
  • Remote locking steel gear differentials with cable-actuation
  • Steel gear transfer case
  • Innovative Battery Compartments
  • Secondary battery mount over front axle for forward weight bias
  • Two speed high/low range transmission with remote shifting
  • Superior 45° steering angle
  • Front - 3 link with panhard
  • Rear - Triangulated 4 link
  • Pre-assembled heavy-duty rod ends with steel hollow balls
  • 5mm diameter steel link rods with 4mm threaded ends
  • Coil-over GTS shocks exclusive to TRX-4 chassis
  • Silver-anodized aluminium 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
  • 1.9” Canyon Trail tyres with trail-tuned foam inserts
  • Tough black scale wheels
  • Trail tuned S1 rubber compound
  • 12mm steel hex
  • TQi™ 2.4GHz 4-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

Length - 20.57 inches (523mm)
Front Track - 9.78 inches (249mm)
Rear Track - 9.78 inches (249mm)
Ground Clearance - 3.14 inches (80mm)
Height - 10.47 inches (266mm)
Wheelbase - 12.28 inches (312mm)
Weight - 6.42lb (2.91kg)
Front Shock Length - 3.54 inches (90mm)
Rear Shock Length - 3.54 inches (90mm)
Front & Rear Wheels - 1.9 x 1.02 inches (49 x 26mm)
Front & Rear Tyres - 4.64 x 1.89 inches (118 x 48mm)
Speed Controller - XL-5™ HV
Motor (electric) - Titan® 21T Reverse Rotation
Transmission - 2-speed Hi-Lo, Remote Shifting
Brake Type - Electronic “Hill Hold”
Battery Tray - 158.75 L x 47 W x 23/26mm H

In the Box
Traxxas TRX-4 1/10 Scale Trail Rock Crawler (Unassembled Kit)
TQi™ 2.4GHz 4-Channel Radio System with 4 Servos
Traxxas XL-5 HV Waterproof ESC
Traxxas Titan® 21T 550 Motor
Full-Colour step-by-step Assembly Manual

Required to Complete
TRX-4 Compatible Bodyshell (313mm wheelbase)
4AA Batteries for Transmitter
6 or 7 Cell NiMh or 2S or 3S LiPo Battery with Traxxas Connector
Compatible Battery Charger
Tool set for Assembly
CA Glue for Tyres

Please Note: Vehicle shown in photos are for illustrative purposes only. This model is a kit requiring assembly and additional items. See Required to Complete list above for full list of items required to complete the model.

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