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

Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Blue)
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Price: $339.95
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The Traxxas TRX-4 Sport combines a lightweight pickup truck body, single speed transmission and a 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 


Wednesday, Aug 29 2018 (about 2 years ago)
Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Blue)
First RC I've bought, read every review on just about every rock crawler out there. I'm probably not the best judge since it is my first RC, but just like every review on it, the servo is junk. After about an hour, my daughter hit a little piece of concrete and stripped the servo horn. Little sad I thought. And if you got any weight at all on the steers, it won't turn the tires, you got to move to get the tires to turn. But other then that, tough little truck, she beat the crap out of it, hard!! I bought it knowing I'd have to change the servo, so I can't give it a bad review. It's definitely fun and I see myself buying a couple more.
Verified Owner
Thursday, Jun 27 2019 (about a year ago)
Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Blue)
The traxxas Trx4 sport is a awesome truck it's truly ready to run with your battery. The truck is a great crawler it climbs over anything. The factory tires do a awesome job but upgrade to the proline hyrax tires and then the truck really comes alive! Then the upgrades that are available are endless and available at Amain hobbies. Traxxas sure was thinking when they were designing this truck. I would strongly recommend buying this truck it truly will amaze you! The folks at Amain are very helpful in answering questions that you may have about upgrades or anything you want to know.
Saturday, Nov 21 2020 (3 months ago)
Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Blue)
My first hobby grade rc. Fantastic out of the box. I recommend learning how to drive it first then modify it to your driving environment. Check out rc review on YouTube. Francis goes over the vehicle in depth. Weighted steel wheels with Proline tires and portal weights transform the truck for the rocks. The best next mod is the overdrive and underdrive gear sets. The truck will be fine on the trail at stock speeds and will climb the impossible. I put in a 35kg servo ($40) of amazon and a hobbywing 1080 esc also $40 to round it out. The stock esc is loud and annoying and makes really steep desents really difficult even crawl mode. Of course it's the other mods that make the esc not acceptable. Have fun!!!
Verified Owner
Friday, Apr 17 2020 (10 months ago)
Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Blue)
A great way to get into crawling. Very happy so far no problems and a lot of fun to drive. I went this route because I did not want the 2 speed transmission or the locking diffs.You will be happy with your purchase and as always amain is first class to deal with.
Verified Owner
Monday, Mar 23 2020 (11 months ago)
Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Blue)
Awesome truck!! Setup pretty well other than the stock steering servo rite out of the box. Very happy with my purchase shipping was fast!
Verified Owner
Tuesday, Dec 31 2019 (about a year ago)
Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Blue)
Just getting back into the hobby after 25 years, alot has changed. The TRX-4 Sport fits the bill for a quality trail and backyard rig for me. Alot of plastic parts but it is sturdy and nicely designed. Climbs and crawls over things that I never would have thought possible for an RC truck. Very pleased with Amain Hobbies and my purchase.
Verified Owner
Saturday, May 4 2019 (about a year ago)
Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Blue)
Unfortunately, I have to wait to run it. Oh Traxxas, when will you start including decent electronics right out of the box. I love the trucks clearance, stance and looks, but the servo failed right out of the box (would turn one direction but not the other) and the response from Traxxas for an unused truck was to send me a gear set, so I can rebuild the servo. I recently purchased an Axial SCX10 II 2017 Jeep Wrangler (poorly glued tires) and an HPI Venture Toyota FJ (weak, but working servo) and no failures yet.
Verified Owner
Saturday, Dec 12 2020 (3 months ago)
Traxxas TRX-4 Sport 1/10 Scale Trail Rock Crawler (Blue)
Received the TRX4 truck as stated when ordered very good service. The Traxxas battery and charger I ordered the same day 11/27/2020 was shipped from another location by USPS and I still have not received the package 12/12/2020. USPS tracking states it will be delayed ,it shows to have been shipped back no attempt to deliver !!!! I will not order again because of shipping USPS during this Covid-19 problem. Amain should ship UPS or Fed-X ,emailed amain hobbies and no reply, Don't buy from this company!!!