INJORA +5mm Diamond Portal Axles with Lay Down Servo Mount & Links for 1/18 RC Crawler TRX4M Upgrade (Black)

Upgrade your 1/18 TRX4M with INJORA’s +5mm Diamond Portal Axles

Designed for scale enthusiasts who want a more capable and authentic feel, this INJORA upgrade set blends rugged performance with realistic styling. The diamond-shaped pumpkin and portal design work together to improve ground clearance without sacrificing the visual accuracy you expect from a 1/18 crawler. Each component is engineered to pair with the TRX4M platform, providing a cohesive upgrade that can enhance stability as you tackle uneven terrain or steep approaches.

The kit includes a servo-on-axle lay down mount, hardened CVD shafts, and precise gearing (12/24T axle gears with 15/20T portal gears), so power delivery can feel more controlled during climbs or transitions. Brass wheel hexes and nuts help secure wheels firmly, contributing to a solid, balanced ride. The axles are pre-assembled, letting you focus on fitment and tuning instead of complex assembly right out of the box. As a reminder, a light coat of grease on the axles before installation will support smooth operation and longevity.

What makes this upgrade stand out

• +5mm per side enhances overall width, increasing total length by 10mm for a more stable stance on rough surfaces.
• Diamond pumpkin preserves a realistic look while adding strength where it counts during crawls.
• Lay-down servo mount provides a compact, clean installation with tidy wiring routing.
• Hardened CVD shafts paired with 12/24T axle gears and 15/20T portal gears deliver smooth, robust power transfer.
• Brass wheel hexes and nuts deliver a snug wheel mounting and a touch more weight where it matters.
• Pre-assembled axles reduce setup time and help you get on the rocks faster.

Performance-focused design notes

The entire axle assembly is extended, not just the dogbones, which helps prevent overloading the drive components during aggressive climbs. This approach supports a more predictable drivetrain feel when navigating rocky lines or steep ledges, while still preserving the scale aesthetics that draw many buyers to this size class.

With a dedicated diamond portal look, the kit offers a level of authenticity that complements the TRX4M’s proportions. The combination of extended axles, portal gearing, and a purpose-built servo mount makes it a compelling option for drivers seeking better stability and a refined visual appeal—without promising specific performance outcomes.

Content note: For best results, grease the axles before installation and verify compatibility with your 1/18 crawler. This upgrade is tailored for the TRX4M platform and similar 1/18 scale crawlers that accept portal axle configurations.