INJORA Brass & Aluminium 59mm Shocks | Long Threaded Oil Dampers for TRX4M TRX4MT 1/18 RC Crawler

Upgrade your TRX4M/TRX4MT 1/18 RC crawler with INJORA 59mm Shocks

Designed for stability and authentic styling, INJORA's Brass and Aluminium 59mm shocks combine weight-conscious parts with precise engineering. The brass bottom rod end lowers the center of gravity, while CNC machined aluminium shock bodies deliver crisp, predictable damping as you tackle rocks, ruts, and slopes. These shocks are built to fit your RC crawler upgrade project and enhance both form and function on demanding terrain.

Key design highlights

• New Design Brass bottom rod end contributes to a lower center of gravity for steadier handling on uneven terrain.
• Superior material CNC machined aluminium shock bodies deliver durable, smooth action for repeatable performance.
• Attentive matching Precise specifications: compressed eye-to-eye 42mm, maximum travel 17mm, spring length 45mm, spring thickness 0.45–0.5mm, weight 8g per shock.
• High performance Threaded shock bodies enable quick pre-load adjustments; a telescopic design supports maximum travel for better wheel articulation.
• Scale look Non-functioning scale reservoir adds authentic crawler styling without changing core function.
• Compatibility Specifically designed as an upgrade for TRX4M and TRX4MT 1/18 RC crawlers, easy to integrate with existing kits.

What you might notice on the trail

In practice, these shocks can contribute to a steadier ride over rocky ledges and loose gravel. The lower center of gravity helps keep tires planted during side-to-side shifts, while the telescopic design offers extra travel when you need it most. Quick preload adjustments make it straightforward to tune ride height and response for different environments or driving styles, without requiring extensive setup.

On steep descents and technical sections, the scale reservoir adds authentic visual appeal while the robust aluminium bodies provide reliable damping under varied loads. The reservoir is primarily for styling, while the real performance comes from threaded adjustability and the suspension geometry.

Tips for setup and tuning

• Start with a balanced preload on all four shocks to establish a baseline.
• Gradually adjust preload to fine-tune ride height and compression behavior over obstacles.
• Pair with appropriate springs to match weight and driving style for your TRX4M/TRX4MT crawler.

Specifications at a glance

• Eye-to-eye (compressed): 42mm
• Maximum travel: 17mm
• Spring length: 45mm
• Spring thickness: 0.45–0.5mm
• Weight per shock: 8g
• Material: brass bottom end; CNC aluminium bodies