INJORA Front Axle +4mm Extended for SCX24 - Improved Stability

In this review the INJORA Front Axle +4mm extended axle is evaluated for drivers upgrading Axial SCX24 series and compatible mini crawlers. The bottom line: this CNC aluminum axle set is for hobbyists who want a noticeable handling upgrade and a more purposeful look without complicated installation. It adds 4mm to each side of track width, uses black and red anodized CNC parts, and pairs an overdrive 13T front worm gear to increase front-end speed and climbing response, which is the single biggest reason to consider it.

Key Features

• CNC Aluminum Construction: The machined aluminum pieces provide a durable, precision appearance that resists wear better than stock plastic parts.
• +4mm Track Width: Widening the track 4mm per side increases lateral stability on rough terrain and reduces the tendency to roll on steep lines.
• Overdrive Gear Set: The included 13T front worm gear (paired with 16T rear) raises front drive speed by about 23%, improving forward traction and climbing capability.
• Improved Clearance: The extended axle gives extra steering clearance so a broader selection of tires and wheel offsets can be used without binding.
• High Compatibility: Designed to fit Axial SCX24 models and related bodies like Deadbolt, JLU, C10, Gladiator and Bronco, and works with stock or INJORA overdrive setups.

Who It's For

This axle set is aimed at SCX24 owners who run technical trails and want a compact upgrade that improves stability and climbing without swapping entire drivetrains. It suits modelers who value a metal appearance and the functional benefit of a slightly wider stance.

If you are a casual user who only bashes on flat surfaces or you prefer stock handling and original ratios, this is not necessary. Also, those seeking a major power increase should consider motor or ESC upgrades in addition to axle changes.

Pros & Cons

Pros

• Durable CNC aluminum construction that elevates the model's look and longevity.
• +4mm extension per side meaningfully increases stability and allows larger tire choices.
• 13T front overdrive gear enhances front pull for better climbing and downhill drag braking.

Cons

• Overdrive changes handling balance and may not be desired by purists preferring stock gearing.
• Some users may need to confirm servo and mount compatibility for specific setups before purchase.

Specifications

Our Verdict

The INJORA +4mm extended front axle is a focused upgrade for SCX24 owners who want improved stability, greater steering clearance and a metal, CNC-finished appearance. It offers clear value to trail-focused hobbyists because the overdrive front gear and wider stance make climbs easier and reduce rollovers while maintaining broad compatibility with stock mounts.

Frequently Asked Questions

Will this fit stock SCX24 models?
Yes, it is designed for Axial SCX24 series and is compatible with stock SCX24 and many servo mounts.

Does the overdrive gear change top speed?
The 13T front overdrive increases front drive speed by roughly 23%, improving front traction and climbing response.

Are the parts durable for trail use?
Yes, the CNC aluminum and anodized finish are more durable than stock plastic components and suit regular trail running.