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TRX-4 Chassis Kit 4WD Clipless TQi Traxxas 82216-4
The Traxxas TRX-4 Crawler Kit Clipless 82216-4 is a build-it-yourself 4x4 RC crawler kit at 1/10 scale. It combines a steel-rail chassis, portal axles, a two-speed gearbox, remotely lockable differentials, waterproof electronics, and a 2.4 GHz TQi radio system. Supplied without a body shell, battery, or charger.
The Traxxas TRX-4 Crawler Kit Clipless 82216-4 is a build-your-own electric 4x4 RC crawler chassis designed for enthusiasts who want to assemble a realistic scale crawling vehicle at 1/10 scale. This version features the Clipless body-mounting system, intended for TRX-4 compatible bodies with a 312 mm wheelbase. The kit is delivered without a body shell, giving you plenty of freedom to choose the finish and build theme.
The TRX-4 is based on a modern crawler platform: a steel-rail chassis, rigid axles, and a full-time 4-wheel drive drivetrain. This layout is suited to slow, technical crawling, where smooth low-speed control, gradual throttle response, and the ability to keep the wheels in contact with the ground are essential. Building the kit lets you discover the RC crawler’s mechanics in detail, from the axles to the drivetrain and suspension linkages.
Portal axles are one of the key features of the TRX-4 platform. Their principle is to place a reduction at the wheels, increasing ground clearance under the axle housings. This design helps limit contact with rocks, roots, and other obstacles encountered during RC trail runs. The Canyon Trail 1.9-inch tires with foam inserts complete the setup for trail and rock crawling use.
The Traxxas TRX-4 82216-4 chassis includes a two-speed transmission and front and rear differentials that can be locked remotely. The low gear is especially suited for technical sections and slow crawling, while the second gear allows faster travel on connecting stretches. Locking a differential ties the two wheels on the same axle together to improve traction when the terrain becomes uneven. These functions are an integral part of the TRX-4 crawling experience and are controlled from the radio transmitter.
The kit comes with a Titan 550 21-turn brushed motor, paired with a waterproof XL-5 HV speed controller compatible with 3S LiPo batteries. In RC modeling, the ESC controls acceleration, braking, and motor rotation direction. This electronics package is paired with a TQi 2.4 GHz Traxxas Link radio system, designed to drive the vehicle and its drivetrain functions. 2.4 GHz technology provides a modern radio link suitable for operating multiple RC models at the same time.
The suspension uses GTS shocks and steel suspension links. Together, they form a solid technical foundation for building a trail crawler, a scale vehicle, or a custom crawling project. Bumpers, wheel arches, and body accessories can be selected according to the body shell you choose. The Clipless mounting system provides a cleaner appearance, with no visible body clips on compatible models.
The Traxxas TRX-4 Crawler Kit is for modelers who want to actively participate in building and configuring their vehicle. Assembly requires an organized workspace and the use of appropriate modeling tools. Basic tools, high-performance grease, and silicone oil for the shocks are included. A cyanoacrylate glue for tires, four AA batteries, a propulsion battery pack equipped with a Traxxas High-Current connector, as well as a charger are required to finish and use the model.
The chassis supports a 6- or 7-cell NiMH pack, or a 2S or 3S LiPo battery pack. Your battery choice affects runtime and the crawler’s overall behavior, so using a suitable battery and charger is essential to enjoy the model under good conditions. The TRX-4 82216-4 is therefore a complete platform for building a custom Traxxas crawler, with a Clipless-compatible body shell and scale equipment selected to match your project.
Technical features:
- Build-it-yourself electric RC crawler kit
- Brand: Traxxas
- Reference: 82216-4
- Scale: 1/10
- Drivetrain: 4-wheel drive
- Steel-rail chassis
- Portal axles
- Two-speed gearbox
- Front and rear differentials remotely lockable
- Titan 550 21-turn brushed motor
- Waterproof XL-5 HV ESC, compatible with 3S LiPo
- TQi Traxxas Link 2.4 GHz radio system
- Canyon Trail 1.9-inch tires with foam inserts
- Clipless body mounting system
- Body compatibility: TRX-4 Clipless with 312 mm wheelbase
- Required power: NiMH 6 or 7 cells, LiPo 2S or 3S
- Body shell, battery, and charger not included
Associated Products
LiPo 3S 11.1V 5000mAh 25 ID Traxxas - TRX-2872X
Traxxas ID 11.1V 25C 5000 mah 2872X lipo battery Compatible with Slash, E-revo, XO-1, Spartan Discharge rate: 25C Dimensions 155x25x45mm For use only with a LiPo ID charger
NiMH 8.4V 3300mAh Long ID Traxxas Battery - TRX-2940X
Traxxas 8.4V Power Cell 3300mah Nimh ID 2940X battery Compatible E-Maxx, E-Revo, Rally, Slash, Slash 4x4, Slash 4x4 Ultimate, Spartan, Summit. Traxxas ID Plug
DUAL quick double charger 100W 2972G + 2X Lipo 3 S...
Traxxas Dual Output Lipo/NiMH iD 100W 8A 2972G Fast Charger with 2 Traxxas 3S 5000mAh 25C Lipo Batteries. 1x Charger Compatible Only with Traxxas iD Connectors . 2x Li-Po 3S 5000mah batteries with iD connector. Charge 2 batteries at once With an 8 amp output current, it's the fastest and most...
Double DUAL quick charger 100W 2972G + 2X Lipo 2 S...
Traxxas Dual Output Lipo/NiMH iD 100W 8A 2972G Fast Charger with 2 Traxxas 2S 7600mAh 25C Lipo Batteries. 1x Charger Compatible Only with Traxxas iD Connectors . 2x Li-Po 2S 7600mah batteries with iD connector. Charge 2 batteries at once With an 8 amp output current, it's the fastest and most...
Charger Pack 2A 2969G - 1x NiMh 8.4V 3000mAh 2923X...
1x Traxxas DC 4Ah Charger for 7.2V to 8.4V Ni-MH Batteries. (2975) 1x Traxxas AC to DC adapter for connection to a 230Vac mains outlet. (2976) 1x Ni-MH 8.4V 3000mAh battery with iD connector. (2923x) 2A/h fast charger!
Quick charger 40W 2970G + 2s Lipo 5800mAh 2843 X Traxxas...
Traxxas Lipo/NiMH iD 40W 4A 2970G Fast Charger with 1 Traxxas 2S 5800mAh 25C Lipo Battery. 1x Charger Compatible Only with Traxxas iD Connectors . 1x 2S 5800mAh Li-Po batteries with iD connector. Automatic recognition of Traxxas iD batteries. Charge indicator. Compatible with Traxxas iD connector...
LiPo 3S 11.1V 4000mAh 25C ID Traxxas - TRX-2849X
Accu Lipo Traxxas ID 11.1V 25C 4000 mah ID 2849X- Discharge rate: 25C- Take Traxxas ID- Size 135x26x43mm
Smartphone Holder for Traxxas TQI Radio - TRX-6532
Attach a mobile device to your Traxxas TQi™ or Aton® transmitter.






































