Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Red) w/XL-5 HV ESC & TQ 2.4GHz Radio

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Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Red)
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Price: $369.95

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The Traxxas TRX-4 Sport combines a lightweight pickup truck body, single speed transmission and full time locked spools with the notorious Traxxas high clearance portal axles, sticky Canyon Trail tires, and great scale looks to create a leaner, performance-focused TRX-4. The Sport’s unique bumpers, wheels, and body were designed for increased climbing versatility, and improved overall driving dynamics. Whether it’s a fun trail run or a hardcore technical crawl, the TRX-4 Sport’s capability and performance-built approach takes your outdoor adventure to the next level.


  • Chassis:
    • Heavy-Duty Steel Frame Rails
    • Adjustable Wheelbase
    • Molded Wire Retainers
    • Dual Battery Tray
    • Floor Pans
    • Aluminum Scale Shocks
    • Heavy-Duty Steel Links
    • Precision Hex Hardware
  • Driveline:
    • Portal Axles
    • Torque Twist Eliminated
    • Locked Differentials
    • Steel Gear Transmission
    • Hardened Steel U-Joints
    • Twin Friction Plate Slipper Clutch
    • Sealed Ball Bearings
  • Geometry:
    • Raised Center Driveshafts and Suspension Links
    • High Steering and Drag Links
    • 45-Degree Steering Angle
    • Extreme Approach Angles
    • High Ground Clearance
    • Front Motor Design
  • Electronics:
    • XL-5 HV ESC
    • Titan 21T 550 Motor
    • Waterproof Metal Gear Servo
    • TQ™ 2-Channel Radio System

Length: 21.93 inches (557mm)
Front Track: 9.78 inches (249mm)
Rear Track: 9.78 inches (249mm)
Ground Clearance: 3.14 inches (80mm)
Weight: 5.79lb (2.63kg)
Height: 9.47 inches (241mm)
Wheelbase: 12.28 inches (312mm)
Approach Angle: 58.82°
Departure Angle: 45.83°
Breakover Angle: 58.93°
Front Shock Length: 3.54 inches (90mm)
Rear Shock Length: 3.54 inches (90mm)
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)
Hex Size: 12mm
Speed Control: XL-5 HV
Motor (electric): 21T Reverse Rotation
Transmission: Single Speed
Gear Pitch: 32P
Differential Type: Spool (no differential)
Chassis Structure / Material: Steel Ladder Frame with Nylon Composite Crossmembers
Brake Type: Electronic “Hill Hold”
Drive System: Shaft Driven 4WD
Steering: Chassis Mounted Servo
Servo: 2075X Metal Gear
Transmitter: TQ™ 2.4GHz 2-Channel Transmitter
Receiver: 6519
Skill Level: 2
Battery Tray: 158.75 L x 47 W x 23/26mm H

Needed To Complete:

  • (4) "AA" Batteries (for transmitter)
  • (1) NiMH Battery (4-7 cell) or LiPo Battery (2S/3S)
  • (1) Compatible Battery Charger 


This product was added to our catalog on September 13, 2018

Thursday, Oct 18 2018 (about 4 years ago)
Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Red)
I recently bought this truck following the advice of a Hobby Town employee. Of course, yes it's a TRAXXAS, and just the name should have been enough right. But I was conflicted about what "crawler" I should buy. The Ascender F-100 was a runner up due to just looks alone. The other option was the Axial Deadbolt II. It's just the Deadbolt was ...well....Ugly! I could go on into a huge long story about how many visits it took to make a final choice, however in order to keep your intrest...SPEND IT!! BUY IT!! It's so worth every little cent. And hey, lets be honest, for the less than 400, this truck "rocks" the crawler field.
Verified Owner
Wednesday, Feb 6 2019 (about 4 years ago)
Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Red)
I have had this truck for about 3 months. I bought a replacement servo as my other trx4 needed one soon after purchase, but the stock one has held up, thus far. This is the best all around crawler you can get, in my opinion. It is a great back up / go to for a standard rc application too! It can actually jump a little, run in nasty sloppy snow, and In HV3S this truck really moves. I like the gear ratio for being a single speed. The lack of lacking diffs is not really a problem, although I like them on my other trx. This truck is balanced very well and likes to crawl right up and over stuff other trucks really struggle with. It’s slightly more capable then Bronco and signicantly more capable then Defender on rocks.

4/5 for being 340.00 with the throwaway TQ radio system. This truck benefits greatly from a 6533 reciever paired with a TQI. TSM and cruise are great features and it would be great if it included that. The military style Tactical is only 80 more and with that, you get it all. Personally, went with the Sport but I use a different radio setup and ignore the 2 speed and diff lock features, its a simple reliable go anywhere take anything type of machine. I dont personally believe in spending significant amounts of money on brass weight upgrades, so its otherwise bone stock. I just happen to think that money is better spent on new rigs or batteries. If you are a Traxxas owner or you just happen to like Traxxas vehicles as I do, this is the truck you want, at this price point.

A 3s HV battery is recommended in this truck . A heavy 3s lipo will add weight for traction at the expense of run time,speed, and handling, but it feels good with a heavy battery too. I use both types. 2S is too slow for me, unless im doing technical stuff that doesnt demand power or speed because at 2s the sport has neither.

In conclusion, this seems to be the best entry level crawler and offers a lot of entertainment bone stock. It’s tough and has required no repairs so far. It’s a nice looking, great performing truck with great features for the price. TQ radio system is very basic and TQi/TSM is a great upgrade.
Verified Owner
Saturday, Sep 28 2019 (about 3 years ago)
Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Red)
Getting back into RC after a very long layoff. This thing showed up and I couldn't wait to get it out on our local course. I have had it out a couple of times and it is just pure fun!! I am having a blast with it. It has taken quite a beating so far and going strong. I am still learning how to drive it through the obstacles but it will do it, just me putting in the right place.

If you are thinking about getting one just go ahead and do it. You will enjoy it,
Verified Owner
Wednesday, Jun 19 2019 (about 3 years ago)
Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Red)
Very good quality for a rtr. A little bit high geared putt of the box for crawling but changing the pinion and spur easily fixes that.
Verified Owner
Tuesday, Jun 18 2019 (about 3 years ago)
Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Red)
Yep great. We have been out with the trucks every weekend for a couple of months. Stripped servo horn is the only problems so far over all five trucks we got, and thats a $10 fix.
Verified Owner
Friday, Dec 28 2018 (about 4 years ago)
Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Red)
After much research on YouTube and talking with local crawlers, I decided to buy a Traxxas TRX-4 Sport as my first crawler. While in completely stock form, I went out with a few experienced friends to our local slick rock area ("Moon Rocks") to give it a go. And it did a great job of handling some tough obstacle courses. Almost made it through the entire day without issue; but, tumbled it down a 15-20' wall to break one of the portal gears at one corner. A $6 part and 15-20 minutes fixed that. Traxxas' on-line assembly manual was very useful in doing this repair. Did find the servo to be weak for advanced crawling; so, I upgraded it. Otherwise have watched several YouTube videos showing me how to perform several upgrades. Some were no cost mods that improved performance. So, check out "TRXS-4 Sport" on YouTube. Bottom line is that I highly recommend this crawler.

Also have to give a shout about AMain. I ordered this on a Friday afternoon; and, received it on Saturday afternoon, the next day. Amazing!!!