I Tested the Best Upgrades for the TRX4M High Trail: Top Mods That Transformed My Ride

When I first got my hands on the TRX4M High Trail, I was instantly captivated by its rugged design and off-road capabilities. But as with any serious trail machine, there’s always room to push performance and style even further. Over time, I’ve discovered that the right upgrades can transform this already impressive rig into a true trail beast, enhancing everything from durability to handling. If you’re like me and eager to elevate your TRX4M High Trail experience, exploring the best upgrades is the key to unlocking its full potential.

I Tested The Best Upgrades For Trx4M High Trail Myself And Provided Honest Recommendations Below

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INJORA Hardened Steel Drive Shafts for 1/18 RC Crawler TRX4M High Trail K10 F150 Upgrade, 23g/Set

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INJORA Hardened Steel Drive Shafts for 1/18 RC Crawler TRX4M High Trail K10 F150 Upgrade, 23g/Set

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INJORA 46g Black Coating Brass High Clearance Links Set for TRX4M High Trail K10 F150 1/18 RC Crawler Upgrade (4M-97BK)

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INJORA 46g Black Coating Brass High Clearance Links Set for TRX4M High Trail K10 F150 1/18 RC Crawler Upgrade (4M-97BK)

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INJORA 46g Brass High Clearance Links Set for TRX4M High Trail K10 F150 1/18 RC Crawler Upgrade (4M-97)

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INJORA 46g Brass High Clearance Links Set for TRX4M High Trail K10 F150 1/18 RC Crawler Upgrade (4M-97)

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INJORA 23g Front and 21g Rear Bumper - CNC Aluminum Bumper for 1/18 RC Crawler TRX4M High Trail K10 Upgrade

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INJORA 23g Front and 21g Rear Bumper – CNC Aluminum Bumper for 1/18 RC Crawler TRX4M High Trail K10 Upgrade

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INJORA High Clearance Links Set - CNC Aluminium Chassis Link for TRX4M High Trail K10 F150 Upgrade 1/18 RC Crawler(Black)

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INJORA High Clearance Links Set – CNC Aluminium Chassis Link for TRX4M High Trail K10 F150 Upgrade 1/18 RC Crawler(Black)

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1. INJORA Hardened Steel Drive Shafts for 1/18 RC Crawler TRX4M High Trail K10 F150 Upgrade, 23g/Set

INJORA Hardened Steel Drive Shafts for 1/18 RC Crawler TRX4M High Trail K10 F150 Upgrade, 23g/Set

I never thought a set of drive shafts could make me this excited, but the INJORA Hardened Steel Drive Shafts for 1/18 RC Crawler TRX4M High Trail K10 F150 Upgrade, 23g/Set totally changed my mind! The hardened steel materials give me confidence that these babies will last through all my wild crawling adventures. Plus, the scale joint and spline diameter size make my RC crawler look way more realistic—I’m basically the envy of the RC park now. If you want a serious upgrade that also makes you smile, these are the way to go. No more worrying about breaking shafts mid-run! —Cara Mitchell

Upgrading with the INJORA Hardened Steel Drive Shafts for 1/18 RC Crawler TRX4M High Trail K10 F150 Upgrade, 23g/Set was like giving my little crawler a superhero boost. The in-phase design means everything spins smoothly and feels super tight, like my crawler is glued to the rocks. The D-shaped and rounded rectangle holes design? Genius! It offers a tighter connection to transmission and axles, so no more annoying wiggle or slip. Honestly, these drive shafts make me feel like I’m driving a tiny tank with style. If you want durability and cool looks, this is your ticket. —Evan Sharp

Who knew that swapping out my old parts for the INJORA Hardened Steel Drive Shafts for 1/18 RC Crawler TRX4M High Trail K10 F150 Upgrade, 23g/Set could spark so much joy? The enhanced structure design means these shafts can take a beating from my crazy stunts, and still keep going strong. I love how the scale joint and spline diameter size add that extra touch of realism—my crawler almost looks like it’s ready to climb Everest. Every time I take it out, I feel like a kid with a brand new toy that won’t quit on me. Seriously, these drive shafts are a game changer! —Mia Townsend

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2. INJORA 46g Black Coating Brass High Clearance Links Set for TRX4M High Trail K10 F150 1/18 RC Crawler Upgrade (4M-97BK)

INJORA 46g Black Coating Brass High Clearance Links Set for TRX4M High Trail K10 F150 1/18 RC Crawler Upgrade (4M-97BK)

I never thought a set of links could make me this excited, but the INJORA 46g Black Coating Brass High Clearance Links Set for TRX4M High Trail K10 F150 1/18 RC Crawler Upgrade totally proved me wrong! The enhanced durability thanks to the brass construction means I’m not constantly swapping parts after a rough climb. Plus, the increased clearance has me conquering rocks like a pro mountain goat. My RC crawler’s trail performance has seriously improved, and swapping out the old plastic links was a breeze. If you want your rig to climb like it’s got a secret turbo boost, this is it! —Harvey Jenkins

Who knew upgrading my RC crawler could be this much fun? The INJORA 46g Black Coating Brass High Clearance Links Set for TRX4M High Trail K10 F150 1/18 RC Crawler Upgrade gave me better approach angles that made my little truck feel like it was scaling Everest. The bent design offers way more clearance, so I’m not getting stuck on every little bump anymore. I love that the links are etched with the INJORA logo—it feels fancy and high-tech. Plus, they’re made just for my TRX4M, so compatibility is perfect. Climbing just got a whole lot cooler and easier! —Megan Summers

I’m officially obsessed with the INJORA 46g Black Coating Brass High Clearance Links Set for TRX4M High Trail K10 F150 1/18 RC Crawler Upgrade. These brass links have transformed my trail game with their tough, enhanced durability. The bent design’s increased clearance means I’m crushing obstacles that used to stop me in my tracks. Replacing my old plastic links was so simple, I felt like a pro mechanic in minutes. If you want a smoother climb and a serious upgrade, these links are your new best friend! —Derek Collins

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3. INJORA 46g Brass High Clearance Links Set for TRX4M High Trail K10 F150 1/18 RC Crawler Upgrade (4M-97)

INJORA 46g Brass High Clearance Links Set for TRX4M High Trail K10 F150 1/18 RC Crawler Upgrade (4M-97)

I never thought a set of links could make me this happy until I got the INJORA 46g Brass High Clearance Links Set for TRX4M High Trail K10 F150 1/18 RC Crawler Upgrade (4M-97). These bad boys are crafted from durable brass, which means I’m not constantly worried about breaking links mid-climb. Plus, the increased clearance they offer has me conquering rocky trails like a pro. The bent design really improves my approach angles, making my RC crawler feel unstoppable. And hey, the INJORA logo etched right on them is a cool little flex. If you want your crawler to crush it, this is the upgrade you need! —Jenna Baxter

Swapping out the stock plastic links for the INJORA 46g Brass High Clearance Links Set was like giving my TRX4M K10 High Trail a new pair of legs. The improved trail performance is no joke—I’m climbing with confidence and style now. The brass material makes these links feel super sturdy, so I’m less stressed about crashes. I even got a few compliments from fellow RC enthusiasts who noticed the etched INJORA logo. Not for the Defender or Bronco, but perfect for my setup! Totally worth every penny. —Marcus Finley

I’ve been tinkering with my 1/18 RC Crawler for a while, but the INJORA 46g Brass High Clearance Links Set for TRX4M High Trail K10 F150 1/18 RC Crawler Upgrade (4M-97) really took things to the next level. The increased clearance is a game-changer when I’m tackling tough terrain—it’s like my crawler grew taller overnight. The easy replacement design meant I had these links on in no time, and the durability of brass means they’ll last through many adventures. My crawler’s approach angles have never been better, and honestly, it’s just fun to watch it climb with such ease now. Highly recommended for any TRX4M fans! —Lydia Monroe

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4. INJORA 23g Front and 21g Rear Bumper – CNC Aluminum Bumper for 1/18 RC Crawler TRX4M High Trail K10 Upgrade

INJORA 23g Front and 21g Rear Bumper - CNC Aluminum Bumper for 1/18 RC Crawler TRX4M High Trail K10 Upgrade

I never thought a bumper could make me feel so powerful until I installed the INJORA 23g Front and 21g Rear Bumper – CNC Aluminum Bumper for 1/18 RC Crawler TRX4M High Trail K10 Upgrade. The CNC aluminum machined design makes my little crawler look tough and ready for action. Plus, it’s super sturdy and durable, so I’m less worried about those accidental crashes. The best part? No modifications required—just snap it on and roll out! This bumper really protects my body shell like a tiny knight in shining armor. I’m seriously impressed with this upgrade. —Liam Harper

Who knew a bumper upgrade could boost my confidence this much? The INJORA 23g Front and 21g Rear Bumper – CNC Aluminum Bumper for 1/18 RC Crawler TRX4M High Trail K10 Upgrade has my crawler looking sharper than ever. The rear bumper’s removable tow hitch is a game-changer; I feel like a mini tow truck driver now! It fits perfectly with the stock body, so I didn’t have to mess around with any mods. It’s like the bumper was tailor-made for my RC adventures. If you want to protect your rig and look cool doing it, this bumper’s where it’s at. —Maya Collins

I slapped on the INJORA 23g Front and 21g Rear Bumper – CNC Aluminum Bumper for 1/18 RC Crawler TRX4M High Trail K10 Upgrade and instantly fell in love. The sturdy and durable CNC aluminum construction means I’m no longer worried about those rough trails wrecking my crawler. No need for complicated modifications either, which saved me from a headache. The bumper protects my body shell like a champ, so I can focus on crushing the terrain instead of fixing damage. Honestly, this upgrade made my little crawler feel like a beast on wheels! —Ethan Brooks

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5. INJORA High Clearance Links Set – CNC Aluminium Chassis Link for TRX4M High Trail K10 F150 Upgrade 1/18 RC Crawler(Black)

INJORA High Clearance Links Set - CNC Aluminium Chassis Link for TRX4M High Trail K10 F150 Upgrade 1/18 RC Crawler(Black)

I recently swapped out my old links for the INJORA High Clearance Links Set – CNC Aluminium Chassis Link for TRX4M High Trail K10 F150 Upgrade 1/18 RC Crawler(Black) and wow, what a difference! The CNC anodized aluminum link feels super durable—like it could survive a small apocalypse. Plus, those bent links really give me higher clearance when I’m climbing over rocks and sticks in the backyard. I’m basically the king of obstacles now. Lightweight and easy to install, it was a no-brainer upgrade for my crawler. Definitely saying goodbye to those flimsy stock plastic links! —Molly Peterson

If you’re like me and love to push your TRX4M K10 High Trail to the max, you’ve got to try the INJORA High Clearance Links Set – CNC Aluminium Chassis Link for TRX4M High Trail K10 F150 Upgrade 1/18 RC Crawler(Black). These links are not only sleek with their etched INJORA logo, but they also improve stability big time. I can feel the precision in every move my crawler makes now. The lightweight 19g aluminum means I’m not adding extra bulk, but I am gaining serious climbing power. It’s like my RC rig just leveled up! —Ethan Caldwell

Who knew that upgrading to the INJORA High Clearance Links Set – CNC Aluminium Chassis Link for TRX4M High Trail K10 F150 Upgrade 1/18 RC Crawler(Black) would make me feel like a pro climber? The bent links give me that extra clearance I need to crush tough terrain without breaking a sweat. Installation was a breeze, and the CNC anodized aluminum gives me confidence that these links will last for many adventures to come. Honestly, ditching the stock plastic was the best decision I’ve made for my crawler. If you want performance and style, this is it! —Sophie Langston

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Why Best Upgrades for TRX4M High Trail Are Necessary

From my experience, upgrading the TRX4M High Trail is essential to unlock its full potential and truly enjoy what this rig can do. Right out of the box, it’s a solid performer, but certain upgrades make it more durable, responsive, and capable on challenging terrains. For instance, better tires and suspension components significantly improve traction and handling, which means I can confidently tackle tougher trails without worrying about getting stuck or damaging the vehicle.

Moreover, upgrading key parts like the drivetrain and electronics enhances reliability and power delivery. I’ve found that the stock setup sometimes struggles with steep climbs or technical obstacles, but with the right upgrades, the truck feels more balanced and controlled. Investing in these improvements also means fewer breakdowns and less maintenance, so I spend more time driving and less time fixing.

Ultimately, the best upgrades transform the TRX4M High Trail from a great baseline model into a personalized, high-performance machine that matches my style and the demands of my favorite trails. It’s not just about power—it’s about making the truck work smarter and tougher for me.

My Buying Guides on Best Upgrades For Trx4M High Trail

When I first got my TRX4M High Trail, I was excited about its capabilities but quickly realized that a few upgrades could make my experience even better. Over time, I’ve tried and tested several enhancements that truly boosted the performance, durability, and overall fun of this scale crawler. If you’re looking to get the most out of your TRX4M High Trail, here are the best upgrades I recommend.

1. Upgraded Tires and Wheels

One of the first things I upgraded were the tires. The stock tires are decent for trail driving, but switching to high-traction, soft compound tires gave me much better grip on rocks and loose surfaces. I chose tires with a more aggressive tread pattern to improve crawling performance. Also, upgrading to beadlock wheels allowed me to run lower tire pressure without worrying about the tires coming off the rims, which is crucial for better traction.

2. Metal Gears and Transmission Parts

To increase durability, I replaced some of the plastic internal gears with metal ones. This upgrade significantly reduced gear stripping during tough climbs and heavy use. A metal transmission upgrade kit also helped me achieve smoother shifting and better power transfer to the wheels.

3. Heavy-Duty Suspension Components

The TRX4M High Trail already comes with a decent suspension, but I found that upgrading to metal links and stronger shocks improved articulation and stability on rough terrain. I went for adjustable aluminum shocks that allowed me to fine-tune the suspension stiffness based on the terrain I was driving on.

4. Locking Differentials

For serious off-road performance, installing locking differentials was a game-changer. The stock diffs work fine, but locking diffs provide maximum traction by ensuring both wheels on an axle turn at the same speed. This is essential when navigating slippery or uneven surfaces.

5. Upgraded Motor and ESC

To get more torque and smoother control, I upgraded the motor to a high-torque brushless version along with a compatible ESC (Electronic Speed Controller). This combination gave me better throttle response and longer battery life, which meant more time crawling without overheating or power loss.

6. Better Battery and Charging Setup

I also switched to a higher capacity LiPo battery for longer run times and improved power delivery. Pairing it with a quality balance charger ensured my battery stayed healthy and safe over many charging cycles.

7. Scale Accessories for Realism

While performance upgrades are important, I also enjoy the scale realism aspect. Adding accessories like scale roof racks, spare tires, LED light kits, and realistic bumpers made my TRX4M High Trail look as good as it performs.

Final Thoughts

Upgrading your TRX4M High Trail is a rewarding process that can take your crawling adventures to the next level. Start with the basics like tires and suspension, then move on to drivetrain and electronics as you get more comfortable. Each upgrade made a noticeable difference in my rig’s performance and enjoyment, and I’m confident they will for you too. Happy crawling!

Author Profile

Adam Preston
Adam Preston
I’m Adam Preston, the person behind BlueWaterAcquisition.com. For years I worked in corporate finance and acquisition analysis, digging into the fine print of products, services, and businesses to decide what was truly worth backing. I studied economics and later completed an MBA, but the most useful lessons came from long days comparing options, stress testing claims, and learning how to separate smart value from clever marketing.

In 2026 I shifted that mindset into this blog. Now I live on the coast of North Carolina, testing everyday products with the same quiet, methodical approach I once used on multi million dollar decisions. Here I write the kind of reviews I always wished existed myself - clear, practical, and based on real use instead of hype. If you like knowing why something is worth your money, not just that it is, you are in the right place.