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 organized neatly in labeled bags with waterproof electronics and pre-assembled shocks and suspension links. A fully illustrated color manual makes the kit as much fun to construct as it is to take off-road.
Easy to Follow Assembly Instructions
The TRX-4 Chassis Kit isn’t just for expert hobbyists. Traxxas goes the extra mile to make the full-color instruction book easy to follow and fun to use. Each section corresponds to a labeled 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.
Features:
- Easy to follow full-color assembly manual
- Trail-tuned XL-5 HV Waterproof Electronic Speed Control
- Powerful Titan™ 21T reverse rotation motor
- Portal Axles
- Rigid Steel Frame
- 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
- 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
- 1.9” Canyon Trail tires with trail-tuned foam inserts
- Tough black scale wheels
- Trail tuned S1 rubber compound
- 12mm steel hex
- Tire glue required
- 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
Specifications:
Length: 20.57 inches (523mm)
Front Track: 9.78 inches (249mm)
Rear Track: 9.78 inches (249mm)
Ground Clearance: 3.14 inches (80mm)
Weight: 6.42lb (2.91kg)
Height: 10.47 inches (266mm)
Wheelbase: 12.28 inches (312mm)
Front Shock Length: 3.54 inches (90mm)
Rear Shock Length: 3.54 inches (90mm)
Approach Angle: 63.82°
Departure Angle: 43.22°
Breakover Angle: 58.93°
Front Wheels: 1.9 x 1.02 inches (49 x 26mm)
Rear Wheels: 1.9 x 1.02 inches (49 x 26mm)
Front Tires: 4.64 x 1.89 inches (118 x 48mm)
Rear Tires: 4.64 x 1.89 inches (118 x 48mm)
Wheel Hex: 12mm
Speed Control: XL-5™ HV
Motor (electric): Titan® 21T Reverse Rotation
Transmission: 2-speed Hi-Lo, Remote Shifting
Gear Pitch: 32
Brake Type: Electronic “Hill Hold”
Skill Level: 2
Battery Tray: 158.75 L x 47 W x 23/26mm H
Includes:
- Unassembled TRX-4 Chassis Kit
- TQi™ 2.4GHz 4-channel radio system
- Steering Servo
- 3 Sub Micro Servos (2-speed & diff locks)
- XL-5 HV waterproof ESC
- Titan® 21T 550 motor
- Full-color step-by-step assembly manual
- TRX-4 compatible body (313mm wheelbase)
- (4) AA batteries for transmitter
- 6 or 7 cell NiMH or 2s or 3s LiPo battery pack with Traxxas High-Current Connector
- Battery charger
- Metric hex drivers (1.5mm, 2.0mm, 2.5mm)
- Basic hand tools (screwdrivers, needle nose pliers)
- CA glue
- Safety glasses
This product was added to our catalog on February 27, 2018
The real question would be, if I had it to do over would I do it again ? That would be a big yes.
I DID do my "homework" on this kit before I bought it. Watched a full build on U-Tube along with reading other reviews on the kit. The 24t output gear and the bearing DID fit on mine (although I purchase an extra gear just incase) and added it to my spare parts bin after not needing it. Also added the all metal gear upgrade kit to the transmission.
IF I was going to complain about anything, I would have liked Traxxas to have added an extra tube of HD grease for the gears. Didn't quite agree with just a dab on each gear. I used a compatible marine grease that was safe for plastic and has a wide temperature range from below zero to over 100 degree F.
Everything went together well directions are good
The shocks are great when built properly some of the smoothest ive ever had even over my prolines
I'm running a scx10.2 cherokee body and it fits perfectly
Id recommend this kit to intermediate builders as the directions can be confusing
I would recommend you buy #8298 stainless screws. I used them instead of the standard screws, and the truck looks better; plus they won’t rust.
I also installed the SAMTRX4-4063-8 Samix hex adapters that extend the width along with the #8255A stub extenders.
For a body, I used the new 8213-GRAY High Trail Edition Sport Clipless body (comes with Expedition Rack), with the 8080x clipless fenders.
This truck is very capable. With some simple modifications and upgrades, it crawls amazingly. I would recommend replacing the servos. The main servo is not powerful enough to move the wheels under load, and I’ve already had the shift servo strip.
Looking forward to continuing to upgrade this truck and crawling with it!
So happy with this purchase thanks Amain Hobbies