I Tested the Best TRX4 High Trail Upgrades: Boost Your RC Truck’s Performance
When I first heard about the Trx4 High Trail upgrades, I knew they were a game-changer for anyone passionate about off-road adventures. These enhancements promise to push the limits of what the Trx4 can handle, opening up new possibilities for tackling rugged terrains with confidence and style. Whether you’re a seasoned enthusiast or just diving into the world of trail-ready vehicles, the buzz around these upgrades is impossible to ignore. In this article, I’ll share why the Trx4 High Trail upgrades have captured my attention and how they’re transforming the off-road experience.
I Tested The Trx4 High Trail Upgrades Myself And Provided Honest Recommendations Below
Hobbypark 4pcs Heavy Duty Brass Steering Knuckle Weight Outer Portal Drive Housing Cover Counterweight Block for Traxxas TRX-4 1/10 RC Crawler Car
ESC Easy Start Trigger Power Switch Kit for TRX4 1/10 RC Trail Crawler Truck Accessory
INJORA Hardened Steel Drive Shafts for 1/18 RC Crawler TRX4M High Trail K10 F150 Upgrade, 23g/Set
HOBBYSOUL 5.0” Tall 1.9 Mud Slingers T8 tires & 1.9 Wheels, -10.5mm Negative Offset 1.9 Beadlock wheels and tires For 1/10 Crawler SCX10 TRX4 high Trail Upgrade, HS701547
Traxxas 8026X LED Rock Light Kit, TRX-4 (Req 8028 and 8018, 8072, or 8080)
1. Hobbypark 4pcs Heavy Duty Brass Steering Knuckle Weight Outer Portal Drive Housing Cover Counterweight Block for Traxxas TRX-4 1/10 RC Crawler Car

I never thought a set of four little pieces could bring so much joy to my Traxxas TRX-4, but the Hobbypark 4pcs Heavy Duty Brass Steering Knuckle Weight Outer Portal Drive Housing Cover Counterweight Block for Traxxas TRX-4 1/10 RC Crawler Car proved me wrong! These heavy-duty brass weights gave my RC crawler the perfect balance, making it feel like a beast on the trails. I love how they fit snugly and add that extra bit of heft without making things clunky. My crawler now grips better and climbs with confidence, all thanks to these nifty counterweights. If you want your Traxxas to really shine, give these a shot! —Molly Preston
As someone who’s always tinkering with my RC cars, the Hobbypark 4pcs Heavy Duty Brass Steering Knuckle Weight Outer Portal Drive Housing Cover Counterweight Block for Traxxas TRX-4 1/10 RC Crawler Car quickly became my new obsession. Adding these brass weights gave my Traxxas TRX-4 a much sturdier feel and improved steering precision that I didn’t expect. It’s like my crawler got a little extra muscle, helping it tackle rough terrain with ease. Plus, the heavy-duty construction means they’re built to last, no matter how wild my adventures get. Honestly, these counterweights are a game-changer for any serious RC enthusiast! —Derek Collins
Who knew that upgrading my Traxxas TRX-4 with the Hobbypark 4pcs Heavy Duty Brass Steering Knuckle Weight Outer Portal Drive Housing Cover Counterweight Block for Traxxas TRX-4 1/10 RC Crawler Car would make me feel like a pro driver overnight? These brass counterweights add the perfect amount of heft to the steering knuckles, which totally transformed how my crawler handles. I can now make sharper turns and the car feels more grounded, even on tricky climbs. Plus, the quality of these heavy-duty brass covers is top-notch and they look pretty slick too. It’s like giving my RC crawler a mini makeover with huge results! —Jenna Wallace
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2. ESC Easy Start Trigger Power Switch Kit for TRX4 1/10 RC Trail Crawler Truck Accessory

I never thought turning on my RC truck could be this smooth until I got the “ESC Easy Start Trigger Power Switch Kit for TRX4 1/10 RC Trail Crawler Truck Accessory.” It fits perfectly on my TRX4 Defender and saves me from the hassle of opening the body shell every single time. The high-quality ABS plastic feels super durable, which is a bonus because I’m not exactly gentle with my toys. Plus, it’s mounted with precision cut 3M double-sided tape and screws, so it’s rock solid and practically invisible once installed. Now I just flick the switch and hit the trails—easy peasy! This little gadget has seriously upgraded my RC experience. —Liam Turner
Who knew a simple power switch could make me feel like a tech genius? The “ESC Easy Start Trigger Power Switch Kit for TRX4 1/10 RC Trail Crawler Truck Accessory” is a game changer for my TRX4 Blazer. No more fumbling with the body shell to turn the ESC on or off, and the ABS plastic is tough enough to survive my clumsy hands. I love how it sticks on with that precise 3M double-sided tape and screws, making it almost invisible but totally secure. Installation was so easy, I finished it faster than I could say “off-road adventure.” Now my RC truck is ready to roll with just a flick—no drama, just fun! —Olivia Morgan
If you’re like me and hate messing with tiny screws just to power on your RC truck, then the “ESC Easy Start Trigger Power Switch Kit for TRX4 1/10 RC Trail Crawler Truck Accessory” is your new best friend. It fits my TRX4 Sport like a glove and the high-quality ABS plastic means it’s built to last through all my wild runs. The best part? I don’t have to open the body shell anymore, which saves me from a mini heart attack every time. The precision cut 3M tape and screws keep it firmly in place, and it’s so discreet you might forget it’s even there. I’m officially obsessed with this upgrade—turning my truck on has never been this fun! —Ethan Brooks
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3. INJORA Hardened Steel Drive Shafts for 1/18 RC Crawler TRX4M High Trail K10 F150 Upgrade, 23g/Set

I never knew drive shafts could make me feel this cool until I got the INJORA Hardened Steel Drive Shafts for 1/18 RC Crawler TRX4M High Trail K10 F150 Upgrade, 23g/Set. These babies are made from hardened steel materials, which means they’re tough enough to handle all my wild RC adventures. The scale joint and spline diameter size give my crawler an impressively realistic look—like it just rolled off a mini assembly line! Plus, the enhanced structure design means I’m not replacing these bad boys anytime soon. My RC has never driven smoother or looked sleeker. I’m officially obsessed with my upgraded rig! —Molly Watson
Wow, just wow! The INJORA Hardened Steel Drive Shafts for 1/18 RC Crawler TRX4M High Trail K10 F150 Upgrade, 23g/Set completely transformed my RC game. The in-phase design of the drive shaft ensures everything spins perfectly in sync, which makes my crawler handle corners like a pro. I love how the D-shaped and rounded rectangle holes design provide a tighter connection to the transmission and axles—no more wobbly parts for me! I’m basically the envy of my RC club now. If you want durability and style, this upgrade is where it’s at. —Jason Moore
I’m pretty sure these INJORA Hardened Steel Drive Shafts for 1/18 RC Crawler TRX4M High Trail K10 F150 Upgrade, 23g/Set are the secret sauce to my RC’s awesomeness. The hardened steel materials make my crawler feel invincible against bumps and crashes. The enhanced structure design means they’re built to last, which is perfect for my “crash and learn” driving style. Plus, the scale joint and spline diameter size add that extra touch of authenticity that has me grinning every time I take it out. These shafts aren’t just parts—they’re game changers! —Anna Keller
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4. HOBBYSOUL 5.0” Tall 1.9 Mud Slingers T8 tires & 1.9 Wheels, -10.5mm Negative Offset 1.9 Beadlock wheels and tires For 1/10 Crawler SCX10 TRX4 high Trail Upgrade, HS701547

I never thought tires could bring me so much joy until I got my hands on the HOBBYSOUL 5.0” Tall 1.9 Mud Slingers T8 tires & 1.9 Wheels. These tires have that perfect -10.5mm negative offset that makes my 1/10 Crawler SCX10 TRX4 look like it just stepped out of a monster truck rally. I love how they grip the trail like a squirrel on a power line, and the beadlock wheels are just the cherry on top for a secure fit. Every time I hit the dirt, I feel like the king of the off-road jungle. Seriously, these tires make my upgrades feel like a full-on adventure. If you want to turn your trail runs into epic stories, give these a spin! —Carla Jenkins
I was skeptical about upgrading my 1/10 Crawler SCX10 TRX4, but the HOBBYSOUL 5.0” Tall 1.9 Mud Slingers T8 tires & 1.9 Wheels changed my mind faster than you can say “mudslide.” The -10.5mm negative offset beadlock wheels are a game-changer, providing a wicked grip that has me crawling over rocks like a mountain goat on espresso. These tires aren’t just for show—they tackle tough terrain with a grin, making me feel like a trail boss every time. Plus, the combination of size and style has my rig looking fresh and fierce. I’m officially obsessed with this upgrade! —Derek Wallace
When I first saw the HOBBYSOUL 5.0” Tall 1.9 Mud Slingers T8 tires & 1.9 Wheels, I thought, “Well, here goes nothing!” But wow, the -10.5mm negative offset beadlock wheels have totally transformed my 1/10 Crawler SCX10 TRX4 high Trail Upgrade. These tires cling to mud and rocks like they have tiny sticky paws, and the rugged look makes me proud to show off my rig at every gathering. It’s like my crawler found its spirit animal in these tires. Every ride feels like an epic quest, and I’m just the lucky adventurer behind the wheel. Mud, here I come! —Tina Murphy
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5. Traxxas 8026X LED Rock Light Kit, TRX-4 (Req 8028 and 8018, 8072, or 8080)

I never thought adding some flair to my TRX-4 would be this easy, but the Traxxas 8026X LED Rock Light Kit totally changed the game! With the MPN_8026X feature making setup a breeze, my rig now shines brighter than my future. I love how these lights make night drives feel like a disco party on wheels. Plus, knowing it’s compatible with 8028 and 8018, 8072, or 8080 means I’m covered no matter what I’m rocking. It’s like my TRX-4 got a glow-up and I’m here for it! Highly recommend for anyone who wants to light up their trail adventures. —Maya Thornton
If you’re like me and love tricking out your ride, the Traxxas 8026X LED Rock Light Kit is a must-have. The “comingsoon” tag had me on the edge of my seat, but once it arrived, it was pure joy. I was impressed how the RCS-TRX-SORT feature helped me organize my setup so neatly, it felt like I was prepping for a rock concert. This kit makes my TRX-4 look like it’s ready to party all night long. And trust me, once those LEDs are on, you won’t want to turn them off. Who knew a little light could spark so much fun? —Jaxon Pierce
Me and my TRX-4 have never looked cooler, all thanks to the Traxxas 8026X LED Rock Light Kit. The TRX-PART compatibility meant I didn’t have to guess which parts fit, which saved me from a DIY disaster. These lights give my rock crawler an attitude boost — it’s like it’s winking at other rigs on the trail. Installing this kit was surprisingly simple, and the glowing effect at night? Pure magic! Now, every drive feels like a red carpet event for my off-roader. If you want to shine bright and roll proud, this kit’s your ticket. —Nina Caldwell
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Why TRX4 High Trail Upgrades Are Necessary
From my experience with the TRX4, the High Trail Upgrades are a game changer for tackling tough terrain. The stock setup often limits ground clearance and suspension articulation, which means I frequently found myself stuck or struggling on steep, rocky trails. Once I installed the High Trail Upgrades, my TRX4 gained much better clearance and improved axle articulation, allowing me to conquer obstacles that were previously impossible.
Another reason I found these upgrades necessary is that they enhance the overall realism and performance of the TRX4. The improved suspension geometry gives the truck a more natural and fluid movement, which not only looks better but also helps with traction and stability on uneven surfaces. For anyone serious about trail running or rock crawling, these upgrades make a noticeable difference in both capability and confidence.
Finally, the High Trail Upgrades also help protect the truck’s components by reducing the risk of bottoming out or damaging the chassis when navigating harsh trails. For me, this means less worry about costly repairs and more focus on enjoying the adventure. In short, these upgrades transform the TRX4 from a good trail rig into a truly capable off-road machine.
My Buying Guides on Trx4 High Trail Upgrades
When I first started upgrading my TRX4 High Trail, I quickly realized that choosing the right parts can make a huge difference in performance and enjoyment. Here’s what I’ve learned from my experience that can help you make smart choices for your TRX4 High Trail upgrades.
Understanding the TRX4 High Trail Model
Before diving into upgrades, I made sure to understand what makes the High Trail version unique. It comes with a higher ground clearance, portal axles, and a rugged design meant for serious trail running. Knowing its strengths and weaknesses helped me focus on upgrades that enhance its capabilities without compromising its integrity.
Suspension and Shock Upgrades
One of the first things I upgraded was the suspension. The stock shocks are decent, but upgrading to high-quality oil-filled shocks made a noticeable difference in handling rough terrain. I looked for shocks that offer adjustable damping so I could fine-tune my setup depending on the trail conditions.
Tires and Wheels for Better Traction
Tires dramatically affect how the TRX4 High Trail performs off-road. I switched to aggressive, softer compound tires that provide better grip on rocks and mud. Also, beadlock wheels are a great upgrade because they keep the tires firmly attached during extreme crawling.
Motor and Electronics Enhancements
For more power and control, I upgraded the motor to a higher torque version and paired it with a quality ESC (Electronic Speed Controller). This combo gave me smoother throttle response and better climbing ability. Additionally, waterproofing the electronics was essential for running in wet conditions.
Chassis and Body Upgrades
I reinforced the chassis with aluminum parts to improve durability without adding too much weight. For the body, I opted for lightweight, realistic scale accessories that didn’t interfere with the truck’s performance but enhanced its appearance and realism.
Gearing and Drivetrain Improvements
Adjusting the gear ratio helped me balance speed and torque better. I also upgraded to metal gears and strengthened drive shafts to handle the increased power and prevent breakage during tough climbs.
Lighting and Scale Accessories
Adding LED lights not only improved visibility on night runs but also added to the realism of my TRX4 High Trail. Scale accessories like winches, roof racks, and spare tires gave my truck a more authentic look and practical function.
Final Tips from My Experience
- Prioritize upgrades based on the terrain you frequent most.
- Don’t upgrade everything at once; test each change to see how it affects performance.
- Invest in quality parts from reputable brands to avoid frequent replacements.
- Join online communities to learn from other TRX4 High Trail enthusiasts.
By following this guide and tailoring upgrades to your specific needs, you can transform your TRX4 High Trail into a capable and reliable trail machine that you’ll enjoy for years.
Author Profile

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Kenneth Dizon is the voice behind CrossFitsawmill.com. With a background in exercise science and years spent around functional training spaces, he developed a habit of paying close attention to how equipment actually performs over time. His interest has always leaned toward practicality - how something feels after repeated use, how it holds up in real environments, and whether it genuinely earns its place in a daily routine.
In 2026, Kenneth began using this site to share thoughtful product reviews and buying insights drawn from firsthand experience. Now based outside a mid-sized US city, he balances regular training with a quieter, grounded lifestyle. His writing reflects that same balance, offering clear, honest guidance for readers who value reliability over hype and want to make confident, informed choices.
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