TRX7866R

Overview

The Traxxas GTX shock in medium length with red-anodised aluminium construction represents premium suspension technology for serious RC enthusiasts across the UK. Whether you're running a high-performance RC car on challenging terrain or pushing your model to its limits on the track, these GTX shocks deliver the smooth, consistent damping performance that separates winning setups from ordinary builds. The bright red-anodised finish adds striking visual appeal to your RC model while protecting the aluminium from corrosion and wear, keeping your shocks looking fresh run after run.

Designed for 1/10 scale RC vehicles, particularly Traxxas XRT models, these medium-length shocks are engineered to handle the toughest conditions with silky-smooth performance. The fully assembled construction means you can install them straight out of the box, though springs and shock oil are sold separately, allowing you to customise your suspension setup to match your specific driving style and terrain requirements. These shocks represent the ideal replacement parts for Traxxas XRT VXL-8S and XRT Ultimate models in any colour variant.

If you're searching for high-quality RC car suspension upgrades in the UK, or looking to refresh your existing setup with proven Traxxas components, these GTX medium shocks deliver the engineering excellence and performance consistency that RC enthusiasts rely on. RC Model Shop stocks genuine Traxxas products, ensuring you receive authentic components with full compatibility and manufacturer warranty support.

Key Features

• Hard-anodized aluminium construction — The shock bodies are manufactured from hard-anodised aluminium that resists wear, corrosion and impact damage, ensuring your shocks maintain their structural integrity and performance through countless runs without degradation.
• PTFE coating for ultra-smooth damping — The hard-anodised surfaces are coated with PTFE (polytetrafluoroethylene), creating the slickest damping action available and delivering consistent, predictable suspension response across all driving conditions.
• 13mm bore design with increased oil capacity — The substantial 13mm shock bores hold over 70% more oil than standard Traxxas Ultra Shocks, providing superior damping control and allowing for more stable, plush suspension action even under aggressive driving.
• Titanium-nitride coated shafts — The shock shafts feature a titanium-nitride coating that resists scuffing and wear, increases overall durability, and eliminates stiction (static friction), ensuring smooth operation throughout the entire stroke.
• X-ring seals for dirt exclusion — X-rings keep shock oil contained within the shock body whilst preventing dirt, dust and water from entering, maintaining optimal damping consistency and extending component lifespan in challenging environments.
• Easy ride height adjustment — The threaded spring collars allow simple ride height changes by simply turning the collar, whilst locking screws secure the lower spring retainers, giving you complete control over your setup without tools or complexity.
• Vibrant red-anodised finish — The eye-catching red-anodised colour coating provides both protection against corrosion and exceptional visual impact, ensuring your RC vehicle's suspension looks as impressive as it performs.
• Fully assembled and ready to install — These shocks come completely assembled, allowing immediate installation into compatible Traxxas models without requiring additional assembly work or technical expertise.
• Includes 30-weight pure silicone shock oil — Each pair includes 30-weight pure silicone shock oil, providing the correct damping fluid for optimal performance straight from the box.

Technical Performance

These medium-length GTX shocks represent the pinnacle of 1/10 scale suspension engineering, combining advanced materials and design principles to deliver performance that serious RC enthusiasts demand. The hard-anodised aluminium construction with PTFE coating creates an incredibly low-friction damping environment, allowing the shock fluid to move smoothly through the internal passages without resistance or inconsistency. The 13mm bore capacity significantly exceeds standard shock designs, holding 70% more oil than conventional Ultra Shocks, which translates directly to superior damping characteristics and more stable suspension behaviour across varying terrain and driving intensities. The titanium-nitride coating on the shock shafts eliminates stiction—the frustrating static friction that can cause jerky, unpredictable suspension movement—ensuring every compression and extension cycle is smooth and consistent. Built specifically for Traxxas XRT VXL-8S and XRT Ultimate models in all colour variants, these shocks integrate seamlessly with your existing setup. The X-ring seal design is critical for reliability in challenging RC environments, keeping suspension fluid contained whilst excluding the dirt, sand, mud and moisture that would compromise damping performance. Spring preload adjustments and ride height changes are accomplished through the threaded spring collar design, allowing you to fine-tune your suspension geometry without dismounting the shocks, a feature that distinguishes professional-grade components from basic alternatives.

What's in the Box

• 1x GTX Medium Shock (red-anodised aluminium, fully assembled)
• 30-weight pure silicone shock oil

What You Need to Complete

• Shock springs (sold separately) — required to complete the suspension assembly
• Compatible Traxxas XRT model (VXL-8S or Ultimate variants)
• Basic tools for installation (hex keys and screwdrivers)

Frequently Asked Questions

• Are these GTX shocks compatible with all Traxxas RC models? — No, these medium-length GTX shocks are specifically designed as replacement parts for Traxxas XRT VXL-8S and XRT Ultimate models in all colour variants, including green, black, blue and orange versions. Before purchasing, verify that your model is listed in the compatible models section to ensure proper fitment and performance.
• Do I need to purchase springs separately? — Yes, springs are sold separately and are essential to complete your suspension assembly. The shocks arrive fully assembled with the internal damping mechanisms, but you must source compatible springs matching your desired ride height and suspension stiffness preferences.
• What is the benefit of the PTFE coating? — PTFE (polytetrafluoroethylene) is an ultra-low-friction material that creates the smoothest damping action available in RC shock design. This coating on the hard-anodised aluminium allows shock fluid to move through the internal passages with minimal resistance, delivering incredibly consistent and predictable suspension response that remains stable whether you're cruising gently or bashing aggressively.
• Why are 13mm bore shocks better than smaller designs? — The 13mm bore holds over 70% more shock oil than standard designs, providing superior damping control and more plush, stable suspension action. The increased fluid capacity allows for finer control over suspension stiffness and response, giving experienced drivers the ability to tune their setup with greater precision.
• What does the titanium-nitride shaft coating do? — The titanium-nitride coating on the shock shafts resists scuffing and wear that would otherwise degrade performance over time. More importantly, it eliminates stiction (static friction that causes jerky, inconsistent movement), ensuring every compression and extension is smooth and predictable throughout the entire shock stroke.
• Are these shocks waterproof? — The X-ring seals are designed to keep shock oil contained and prevent dirt and water contamination, helping maintain consistent damping performance in wet conditions. However, these are not fully submersible components; they're engineered to perform reliably in typical RC driving environments including damp terrain.
• What shock oil is included? — The package includes 30-weight pure silicone shock oil, which is the correct damping fluid for optimal performance. If you need to adjust damping characteristics, alternative viscosity oils are available separately, allowing complete customisation of your suspension setup.
• How do I adjust ride height? — Ride height adjustment is straightforward—simply turn the threaded spring collar up or down to your desired height. The lower spring retainers are held in place with locking screws, keeping everything secure whilst allowing quick adjustments between runs without removing the shocks from your RC model.

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 Traxxas Body, GTX shock, medium (aluminium, Red-anodised) (1pc) TRX7866R 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.