Modified Axial SCX24 RC crawler with upgrade parts - Vorexon RC

Best Axial SCX24 Upgrades: What to Upgrade First?

The Axial SCX24 is already a very capable 1/24 micro crawler in stock form, but a few carefully chosen upgrades can noticeably change how it performs on rocks, steep climbs and off-camber sections. The most effective approach is not to replace everything at once: first address what is actually limiting your vehicle.

This guide covers the best SCX24 upgrades to consider, how they affect crawler behavior and the order in which to install them to keep the build balanced.

Looking for compatible parts now? Browse Vorexon’s full Axial SCX24 parts and upgrades collection.

Which SCX24 upgrades should you do first?

For most SCX24 builds, the most noticeable gains come first from traction, steering and weight distribution. These three areas directly affect the crawler’s ability to hold a line, clear an obstacle and remain stable.

The setup still needs to stay balanced. Very grippy tires are less useful if the servo can no longer hold the wheels under load. Likewise, adding a lot of brass can improve stability but also increase the load on the steering, motor and drivetrain. Upgrade order therefore matters as much as the parts themselves.

1. SCX24 tires: start with traction

Tires are often the first upgrade you can really feel. Softer rubber helps the tread conform to rocks and uneven surfaces. Diameter, width and tread pattern can then be selected around the terrain and the ground clearance you want.

Among the options for micro crawlers, the INJORA Super Soft Sticky 1.0 tires in 64 × 24 mm are listed for the Axial SCX24 as well as other compatible 1/18 and 1/24 platforms.

Another option is the AXSPEED 1.0 soft-rubber tires, offered in 50 or 54 mm sizes for various SCX24 and TRX4M setups.

Before increasing tire diameter, always check clearance around the body, shocks and steering at full lock. A larger tire can add ground clearance, but it can also rub and restrict articulation.

To compare more sizes and tread patterns, browse the RC crawler wheels and tires.

2. SCX24 steering: gain precision

Technical crawling requires precise steering at very low speed. As traction or front-axle weight increases, the servo and steering components have to work harder.

A more suitable servo becomes worthwhile if the stock steering struggles to hold the requested angle under load. In the Vorexon range, the AXSPEED EMax ES08MAII servo with mount and 15T horn is one of the options intended for the SCX24.

For vehicles already fitted with MEUS SCX24 portal axles, the MEUS Racing brass steering-knuckle and differential-cover kit provides another upgrade option for that specific setup.

Important: this MEUS kit is listed for MEUS SCX24 portal axles. It should not be treated as a universal part for a stock SCX24 axle.

You can also browse the RC crawler steering parts.

3. Add weight low, but in moderation

Lowering the center of gravity can improve stability on steep climbs and off-camber terrain. That is why brass parts are popular around wheels, hubs, steering knuckles and axles.

More weight does not automatically mean better performance. Excess mass increases the load on the servo, motor and drivetrain. The goal is to place useful weight as low as possible without making the crawler unnecessarily heavy.

If your SCX24 already has good tires and reliable steering, targeted low-mounted weight can be the next logical step. The crawler weight and performance collection groups parts intended for this type of tuning.

4. SCX24 drivetrain: upgrade it once the chassis is balanced

Once traction, steering and stability are working well, the drivetrain becomes a relevant area to optimize. Driveshafts, gear ratios, axles and the transmission can change how power reaches the wheels and how smoothly the vehicle behaves at low speed.

For custom builds, the MEUS Racing cut-to-length driveshaft for SCX24 can help adapt the drivetrain when wheelbase or component placement differs from the stock configuration.

For a more complete change, the INJORA CNC aluminum complete transmission gearbox is listed for several Axial SCX24 versions, including Deadbolt, C10, JLU, Gladiator and Bronco.

Changes to gearing, axles or the transmission make the most sense once the vehicle’s basics are already well sorted. Browse the related parts in the RC crawler drivetrain collection.

5. LCG chassis and DIG system: for advanced builds

A chassis change goes further than simply replacing tires or a servo. It can alter component placement, suspension geometry and weight distribution, so it is best integrated into a coherent build plan.

For a heavily modified or performance-focused SCX24, the AXSPEED carbon-fiber LCG chassis is one option designed for this type of setup.

Vorexon also offers the MEUS Racing DIG unit for the LCG MD24 chassis. This is an advanced component specific to that chassis, not a universal first upgrade for a stock SCX24. Drivetrain and mounting compatibility should therefore be checked before ordering.

Recommended order for upgrading an SCX24

Tires — improve contact with the terrain first.
Steering — gain precision and make sure the servo can handle the setup.
Low-mounted weight — improve stability without adding unnecessary mass.
Wheels and tire retention — match the setup to tire diameter and terrain.
Suspension — refine ride height, articulation and chassis behavior.
Drivetrain — then work on driveshafts, gearing and the transmission as needed.
Chassis and axles — best reserved for more complete builds.
Specialized systems — DIG and similar advanced solutions come last, once the rest of the vehicle is compatible.

How to check SCX24 part compatibility

The words “1/24 crawler” are not enough to guarantee compatibility. Always check the exact model, dimensions, mounting points and the parts already fitted to your vehicle. Some parts fit several micro-crawler platforms, while others only work with a specific axle, chassis or transmission.

This is especially important when combining larger tires, weighted wheels, portal axles, upgraded steering or a custom chassis. One modification can change clearances and create an incompatibility elsewhere on the vehicle.

Build your SCX24 around the result you want

The best upgrade is the one that fixes a limitation you can actually identify on your crawler. If it lacks traction, start with tires. If it struggles to hold its line, work on steering. If it tips too easily, look at weight distribution. Only then does it make sense to go further into the drivetrain, chassis or axles.

This progression helps avoid buying parts without a clear purpose and keeps the SCX24 balanced as the build evolves.

For a deeper look at the drivetrain, also read our RC crawler drivetrain upgrade guide. If you are comparing micro crawlers, see our TRX4M and FCX24 / FCX18 guides as well.

Ready to continue your build? Browse all Axial SCX24 parts and upgrades at Vorexon, or discover the popular RC crawler upgrades.

To find components for this platform more quickly, also browse the INJORA parts for SCX24, MEUS Racing parts for SCX24 and SCX24 motors and power-system upgrades.