Overview
Add measured stability and tire-fitment options to your Traxxas TRX-4 with the Hot Racing +5mm Wide Track S2 Hardened Spring Steel Portal Drive Stub Axles. Each side of the vehicle gains 5mm of additional track width — a more conservative widening than the +10mm version, perfect for drivers who want a touch more stability without dramatically altering the chassis stance.
S2 hardened spring steel construction delivers bulletproof durability, while the blue-anodized aluminum +5mm spacers provide a clean visual touch that complements the wider stance without overwhelming the truck's proportions.
Key Features
- CNC-machined S2 hardened spring steel axles
- Aluminum +5mm spacers, blue anodized
- Increases vehicle width by 5mm per side (10mm total)
- Improves stability, steering clearance, and tire selection
- Replaces Traxxas portal drive stub axles (8255)
- Fits front or rear
Performance Benefits
- Wider stance improves stability and side-hill confidence
- More tire selection flexibility than stock width
- S2 spring steel resists wear, twist, and breakage
- Subtle stability boost without dramatically altering chassis appearance
Usage Notes
The +5mm length is the middle option in the Hot Racing TRX-4 portal axle family — also available in stock length (STRXF39) and +10mm (STRXF39W10). Apply light grease to portal-drive components during installation.
Technical Specs
- Axle Material: CNC S2 hardened spring steel
- Spacer Material: Aluminum, blue anodized
- Width Increase: +5mm per side (+10mm total)
- Replaces: Traxxas 8255 portal drive stub axle
What's Included
- +5mm portal drive stub axle set with spacers
Fitment
- Traxxas TRX-4 (all variants)
- Vehicles using Traxxas 8255 portal drive stub axles
Summary
The Hot Racing +5mm Wide Track S2 Spring Steel Portal Drive Stub Axles deliver a measured stance and durability upgrade for any Traxxas TRX-4. The right choice for drivers who want more capability without going all-in on the +10mm width.
