Looking for bolt-on portal axle upgrades to boost ground clearance and stability on your 1/24 or 1/10 RC crawler? The following selections are designed for quick installation and improved control on rocky terrain. Each option targets a specific use case, from high clearance to weight distribution. Perfect for enthusiasts building scale realism, ramp crawlers, or drivers seeking steadier handling on rough trails.
| Product | Best For | Why Pick It |
|---|---|---|
| MEUS Racing +6.2mm SCX24 Portal Axles (Black) | Axial SCX24 models like C10, JLU, Wrangler | Adds +7mm ground clearance and 25% underdrive for better traction and stability |
| MEUS RACING Mullet Setup SCX24 V2 Axles | SCX24 enthusiasts seeking 3-Section CVD | Improved drive train geometry and robustness with modern CVD setup |
| Stackable 6mm Brass Bolt On Weights for Supershafty CP43/CP44 | Weight tuning for portal axles | Lowers center of gravity and enables tunable mass distribution |
| Aluminum Alloy Front Rear Portal Axle Upgrade (MN Model Compatible) | MN model enthusiasts | Aluminum upgrade with portal design for improved clearance |
| Stackable 6mm Brass Bolt On Weights for Capra SCX10 III AR45P | Cheater rigs and custom builds | Stackable, precise weight addition below axle centerline |
MEUS Racing +6.2mm SCX24 Portal Axles for Axial 1/24 SCX24 Crawler

Best for: Axial SCX24 builds using C10, JLU, Wrangler, or Bronco variants. These portal axles add ground clearance and underdrive to improve traction on uneven terrain. Selection is ideal for drivers seeking stability without major chassis changes. Caution: Confirm compatibility with your specific SCX24 body and wheelbase before installation.
MEUS RACING Mullet Setup SCX24 V2 Axles with 3-Section CVD

Best for: Builders wanting enhanced drive performance with a 3-section CVD design for 1/24 SCX24. This setup improves drive train reliability and steering response on rough surfaces. Choose this if you value refined articulation and smoother power transfer. Limitation: Detailed fitment notes vary by body and chassis configuration; verify fit with your exact SCX24 variant.
Stackable 6mm Brass Bolt On Weights for Supershafty CP43 CP44 Portal Axles

Best for: Piloting vehicles needing improved weight distribution around portal axles for better stability. This kit lowers the center of gravity and allows fine-tuning of front-to-rear balance. Limit: Only suitable for models designed to accommodate these specific CP43/CP44 portal axles with compatible mounting.
Aluminum Alloy Front Rear Portal Axle Upgrade (Silver)

Best for: MN Model MN99S, MN98, D90, D91, D99, and similar 1/12 RC cars seeking a robust aluminum portal upgrade. It offers improved durability and realistic portal geometry for increased ground clearance. Caution: Check exact axle compatibility with your MN model year and wheel offsets before purchase.
Stackable 6mm Brass Bolt On Weights for Capra SCX10 III AR45P

Best for: Capra SCX10 III AR45P portals requiring precise weight tuning below the axle centerline. The kit supports front-rear and side-to-side balance adjustments for tougher lines or cheater rigs. Limitation: Weight additions may affect overall ride height and necessitate recalibration of suspension geometry.
Buying Guide
What should you consider when choosing portal axles for RC crawlers? Start with crawler scale and chassis type to ensure compatibility. Ground clearance and underdrive percentage influence traction and control on rocky trails. Weight tuning adjusts stability and cornering, but too much mass may reduce acceleration. Fitment details such as wheelbase, hub width, and mounting patterns matter for a clean install. Consider compatibility with existing tires, bodies, and electronics. If you’re new, pick a bolt-on kit that explicitly lists your model family to minimize welding or trimming needs.
How to compare features effectively? Look for ground clearance gains, underdrive ratios, material construction (aluminum vs brass), and the ease of adding weights without altering the wheelbase. For weight-focused builds, stackable brass weights allow precise mass placement. For durability and articulation, 3-Section CVD or portal designs often provide smoother power transfer and better obstacle clearance.
What installation considerations are important? Verify screw patterns and mounting hardware required by each kit. Some upgrades may require additional spacers, longer screws, or specific wheel hubs. Ensure compatibility with your radio and servo setup to prevent binding or interference during operation.
FAQ
- Q: Do portal axles increase ground clearance on small crawlers?
- A: Portal axles typically increase clearance by reducing suspension drop, helping navigate obstacles more easily.
- Q: Are brass weights compatible with all portal axles?
- A: Brass weights are designed for specific portal axles; check the product description for compatibility.
- Q: Is underdrive good for crawling performance?
- A: Underdrive can improve torque distribution and stability on rough terrain, but may reduce top speed.
- Q: Do these upgrades require professional installation?
- A: Most bolt-on portal axles are straightforward for hobbyists, though some fitment checks are recommended.
- Q: Can I mix different brands of weights and axles?
- A: Mixing is possible but ensure mounting compatibility and weight balance to avoid handling issues.