We know the Traxxas TRX-4 RTR is a capable rig, we have seen TONS of them both on the trails and in comps. Now you have the choice to build it from the ground up which is an awesome way to learn everything there is to know about the truck for if and when you need to work on it. The kit comes with everything you need to build the chassis including electronics! The only things you will need to complete the truck will be a body, tire glue, battery and charger. (And some tools)

From: Traxxas
Direct Link: TRX-4 Unassembled Kit

Review By: Wrench
Pics By: Wrench

Kit Includes:
A Full Unassembled TRX-4 Chassis Kit
TQi™ 2.4GHz 4-channel radio system with 4 servos
XL-5 HV waterproof ESC
Titan® 21T 550 motor
Full-color step-by-step assembly manual

You can watch the unboxing video and description of what it comes with here: TRX-4 Unassembled Kit Unboxing Video

What’s Needed to Complete:
A TRX-4 compatible body (312mm)
4 AA Batteries
6 or 7 cell NiMH battery pack with Traxxas Connector
2s or 3s LiPo battery pack with Traxxas Connector
Battery charger
Metric hex drivers 1.5mm, 2.0mm, 2.5mm
Basic hand tools screwdrivers, needle nose pliers
Tire Glue
Street Price: $395
Part Number: #82016-4

The Build:
The build went very well. The instructions are well laid out, each step is easy to follow with screw sizes on the side in full scale, so all you have to do is match the screw to the picture. This is great on multiple levels, mostly for not having to flip around in the instructions to double check those sizes are correct.
There isn’t much that comes pre-assembled, so there are a lot of steps.

I made my life a little easier by using a power driver and bits. (Don’t tell anyone!) You have to be careful if you go this route. A power driver can easily strip the soft plastic with the screw.

The included servos and ESC is fully waterproof and ready for whatever you can throw at it. Wiring is shown in the instructions with layout and routing.
The included 1.9” Canyon Trail tires do not come glued to the rims, so this gives you a chance to add some weight before gluing to lower your center of gravity if you want.

For the body, we got our hands on a clear TRX-4 Ford Bronco. This body looks amazing. The chromed hard plastic trim gives it a hardbody look without adding all the weight to the top. I went with a Chip Foose style paint job. A classic combo with more modern colors. Anodized aluminum blue with pearl white. The look was topped off with a dress up kit of a front bumper with bull bar, rear bumper with a receiver hitch, and a spare tire carrier. Next up for this rig? Getting dirty!! See ya on the trails!

Summary: We can highly recommend giving the TRX-4 Kit a try if you are in the market for a kit, and especially looking for a trail rig. You will learn a ton about the truck during the build, and the entire process went very smooth without any issues.

Check out some awesome shots we took after the build.