FAST2336

Overview

The Fastrax Double Spring Aluminium Shock Absorbers 100mm (FAST2336) are precision-engineered suspension upgrades designed for serious RC enthusiasts who demand improved handling and durability from their trail crawlers and off-road vehicles. These replacement shocks are built to enhance the performance of your Traxxas TRX-4 platform, offering a direct bolt-on upgrade that immediately transforms how your RC car handles challenging terrain. Whether you're a dedicated UK RC car enthusiast tackling rocky trails or pushing your crawler to its limits, these aluminium shock absorbers provide the responsive suspension tuning that separates casual bashers from competitive drivers.

Crafted by Fastrax, a manufacturer renowned for producing high-quality aftermarket suspension components, these shocks represent a significant step up from stock equipment. The double spring design allows for more sophisticated suspension geometry and tuning capabilities, giving you granular control over ride height, stiffness, and overall handling characteristics. If you're serious about maximising your TRX-4's potential on technical terrain, upgrading to these professional-grade shock absorbers is one of the most impactful modifications you can make to your ready to run RC crawler.

These shocks are fully compatible with an extensive range of Traxxas TRX-4 variants, from the iconic Chevrolet K10 Cheyenne to the modern Ford Bronco and Nissan Pathfinder models. The 100mm length has been specifically engineered to maintain proper ride height and suspension geometry across the entire TRX-4 platform, ensuring that your crawler maintains its intended handling characteristics whilst benefiting from upgraded performance. For RC enthusiasts in the UK seeking to improve their trail crawler setup, these shock absorbers deliver measurable improvements in comfort, control, and durability.

Key Features

• Double Spring Design — The dual spring configuration provides superior suspension compliance and allows for independent tuning of compression and rebound damping, giving you far more control over how your RC crawler responds to bumps and technical obstacles than single-spring alternatives.
• 100mm Length — Precisely engineered to the correct dimension for Traxxas TRX-4 models, maintaining OEM ride height and suspension geometry whilst delivering the handling benefits of an upgraded shock absorber system.
• Aluminium Construction — The lightweight yet rigid aluminium bodies dissipate heat efficiently during extended running sessions and resist the corrosion that can affect lesser materials, ensuring your shocks remain responsive and reliable even after exposure to water and mud.
• Professional Grade Engineering — Fastrax has designed these shocks with the same attention to detail used in competition RC vehicles, delivering performance characteristics that translates to smoother rides over technical terrain and improved overall vehicle control.
• Supplied as a Pair — You receive two complete shock absorber units in this package, allowing you to upgrade two wheel locations on your TRX-4 or have spares on hand for extended running sessions.
• Direct Compatibility — These shocks are engineered specifically for Traxxas TRX-4 platform compatibility, ensuring perfect fitment with zero modification required to your existing chassis or suspension mounting points.
• Enhanced Damping Performance — The internal damping circuits have been optimised for trail crawler requirements, absorbing impacts from rocks and roots whilst maintaining enough responsiveness to keep your wheels in contact with the terrain.

Technical Performance

These Fastrax shock absorbers represent a genuine performance upgrade over standard OEM shocks found on stock Traxxas TRX-4 models. The double spring system allows for independent tuning of compression and rebound characteristics, meaning you can adjust how aggressively the shock extends and compresses in response to terrain impacts. The aluminium construction is a critical advantage over plastic alternatives; aluminium dissipates heat generated by internal friction, keeping the damping oil at optimal viscosity throughout extended running sessions. This thermal stability directly translates to more consistent handling characteristics whether you're running for five minutes or fifty minutes. The 100mm length has been precisely calculated to maintain the correct ride height and suspension geometry specific to the TRX-4 platform, ensuring that your crawler maintains proper weight distribution and articulation capabilities. The internal sealing arrangements protect against mud, water, and dust ingress, which is essential for vehicles used in UK terrain conditions where wet, muddy trail sections are common. These shocks are designed to work seamlessly with the TRX-4's existing suspension architecture, whether you own the Chevrolet K10 Cheyenne variants in black, silver, blue, red, or copper, the Ford F-150 Ranger XLT High Trail Edition, the iconic 1972 Chevrolet K5 Blazer, the 1979 Chevy Blazer with clipless body, the Nissan Pathfinder SE-V6, the modern 2021 Ford Bronco in any colour variant, the TRX-4 Defender in green, sand, red, or silver, or any of the TRX-4 Sport variants including models with orange or blue colouring. The upgrade path from stock to these professional-grade shocks delivers immediately noticeable improvements in bump absorption and overall ride quality.

What's in the Box

• Two Fastrax Double Spring Aluminium Shock Absorbers, 100mm length

Frequently Asked Questions

• Are these shock absorbers compatible with my Traxxas TRX-4? — Yes, these Fastrax FAST2336 shock absorbers are engineered specifically for the Traxxas TRX-4 platform and are compatible with virtually every TRX-4 variant currently in production, including the Chevrolet K10 Cheyenne High Trail Edition in all colour options, Ford F-150 Ranger XLT, both the 1972 and 1979 Chevrolet Blazer models, Nissan Pathfinder SE-V6, Ford Bronco, TRX-4 Defender, and all TRX-4 Sport variants. Simply confirm that you own a TRX-4 chassis and these shocks will fit without modification.
• What is the advantage of double spring shocks over single spring designs? — Double spring shock absorbers allow you to independently tune compression and rebound damping characteristics, giving you far more control over suspension behaviour. This means you can tailor how aggressively your suspension responds to impacts, how quickly it recovers, and how the vehicle behaves over technical terrain. Single spring designs cannot offer this level of customisation, making double spring systems the preferred choice for serious RC enthusiasts.
• Will these shocks improve my TRX-4's handling on rocky trails? — Absolutely. The professional-grade damping characteristics and aluminium construction of these Fastrax shock absorbers deliver superior bump absorption compared to stock shocks, which means your wheels maintain better contact with the terrain over rocks and roots. This translates to improved traction, more predictable handling, and a noticeably smoother ride, particularly on technical trail sections.
• Are these shocks waterproof? — These aluminium shock absorbers feature internal sealing arrangements that protect against mud and water ingress, making them suitable for use in wet UK trail conditions. However, they should not be submerged in water for extended periods; normal splashing and wet conditions are fine.
• How long do these shock absorbers last? — Fastrax shock absorbers are engineered for durability and should provide thousands of kilometres of reliable service with proper maintenance. Periodically checking the seals and ensuring the damping oil remains clean will maximise lifespan. If you notice a loss of damping performance after extended use, the internal damping circuits may require servicing.
• What tools do I need to install these shocks? — Installation is straightforward and requires only basic RC tools such as hex drivers and a screwdriver. The shocks bolt directly onto existing TRX-4 suspension mounting points with no modification required to your chassis.
• Can I adjust the stiffness of these shocks? — Yes, the double spring design allows for fine-tuning of compression and rebound damping. Many experienced RC enthusiasts swap different oil weights or adjust preload on the springs to customise how the shocks feel. Fastrax publishes detailed tuning guides for their shock absorbers.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the FASTRAX DOUBLE SPRING ALLOY SHOCK ABSORBERS 100MM FAST2336 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.