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SKU:PRO639200
1/18 Big Bore Scaler Shocks for Traxxas TRX-4M (4) (PRO639200)
1/18 Big Bore Scaler Shocks for Traxxas TRX-4M (4) (PRO639200)
Pro-Line 1/18 Big Bore Scaler Shocks for TRX-4M (Set of 4) upgrade your Traxxas TRX-4M with scale-ready damping and greater oil capacity. They arrive pre-assembled and ready to install—just fill the bodies with 20wt shock oil and mount them using the included hardware for a quicker, smoother ride on tough terrain.
Crafted with CNC-machined aluminum shock caps, bodies, and bottom caps, these shocks deliver durability and a refined look. The true big-bore design holds more oil for improved damping, while a polished steel shaft and a leak-free double O-ring seal enhance reliability. The kit includes three spring rates (Green soft in the front, Yellow medium in the rear, and Red hard as an optional tune) and measures 52mm extended (36mm collapsed) with a 14mm stroke and 34mm spring length. Suitable for TRX-4M, they provide a noticeable upgrade in handling and scale realism without a complicated install.
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Exploded View
Parts List
Parts List
Product Manual
Product Manual

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Overview
Enhance the performance of your TRX-4M with the Big Bore Scaler Shocks, designed specifically for unparalleled performance in small-scale adventures. This set of four shocks features CNC machined aluminum shock caps, threaded bodies, and polished steel shock shafts, offering a stylish upgrade over the stock shocks.
The double O-ring seal on the main shaft ensures leak-free operation while providing a smooth and low-friction shock action. These pre-assembled shocks are ready to use; simply add 20wt silicone shock oil to the shock body, replace the cap, and compress the shock a few times to lubricate the shaft adequately.
The package includes three spring rates: Green (Soft) for the front, Yellow (Medium) for the rear, and optional Red (Hard) springs for heavier bodies or specific tuning needs. All necessary mounting hardware is included for easy installation on your TRX-4M. Don't miss out on these top-performing mini shocks that promise to elevate your RC experience. Get your Pro-Line Big Bore Scaler Shocks today for ultimate performance!
Model Number: PRO639200 | Big Bore Scaler Shocks (4) for TRX-4M.
Features
- Designed specifically for TRX-4M for enhanced performance
- CNC machined aluminum shock caps, bodies, and bottom caps
- True Big Bore design holds more oil for improved performance
- Pre-assembled; just add 20wt oil to get started
- Leak-free double O-ring seal for reliable operation
- Polished steel shock shaft for durability and style
- Includes optional stiff springs for customizable tuning
- Extended Length: 52mm (eye-to-eye)
- Collapsed Length: 36mm (eye-to-eye)
- Stroke: 14mm
- Spring Length: 34mm
- Spring Rates: Green (Soft), Yellow (Medium), and optional Red (Hard)
- All necessary mounting hardware included
Needed to Complete
- 20wt silicone shock oil
Specifications
- Product Name: 1/18 Big Bore Scaler Shocks for Traxxas TRX-4M
- Model Number: PRO639200
- Quantity: 4
- Extended Length: 52mm (eye-to-eye)
- Collapsed Length: 36mm (eye-to-eye)
- Stroke: 14mm
- Spring Length: 34mm
- Spring Rates: Green (Soft), Yellow (Medium), Red (Optional Hard)
- Recommended Oil: 20wt silicone shock oil
- Included Hardware: All necessary mounting hardware
- Fit: TRX-4M
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