TRX7767-GRAY

Overview

The Traxxas Spring Retainer (Adjuster) in grey-anodised aluminium is a premium suspension tuning component designed for Traxxas GTX shocks fitted to X-Maxx and XRT monster trucks and rock crawlers. This is an essential upgrade for any serious RC enthusiast in the UK who wants to fine-tune their vehicle's suspension geometry and spring pre-load characteristics. Whether you're preparing your brushless RC monster truck for competitive racing, weekend bashing, or technical rock crawling, these spring retainers allow you to dial in the exact suspension setup your machine needs to perform at its best.

Built from high-quality grey-anodised aluminium, these spring retainers offer durability, corrosion resistance, and a professional appearance that matches the quality of Traxxas vehicles themselves. The integration of O-rings directly into the retainer assembly means you have a complete, ready-to-install solution that eliminates the need for separate hardware sourcing. Sold as a complete set of four pieces, this product covers all four shock positions on your RC vehicle, making it a comprehensive suspension upgrade for X-Maxx, XRT and related Traxxas platforms.

For UK RC car enthusiasts looking to optimise their ready-to-run or race-specification vehicles, these spring retainers represent genuine Traxxas engineering and quality. They work specifically with GTX shock technology, which is renowned for responsive handling and consistent performance across varied terrain. If you own a Traxxas X-Maxx Belted, X-Maxx Ultimate, XRT VXL-8S or XRT Ultimate model, these retainers are a direct fit that will elevate your suspension tuning capabilities.

Key Features

• Grey-anodised aluminium construction — The aluminium material is anodised in a professional grey finish, providing excellent corrosion resistance, longevity and an aesthetically pleasing appearance that complements high-end RC vehicles. This ensures the retainers will withstand repeated use and environmental exposure without degrading.
• Integrated O-ring assembly — Each spring retainer comes pre-assembled with an O-ring, eliminating the need to source additional components or struggle with separate assembly. This design allows for quick, hassle-free installation and ensures proper seating of the spring pre-load mechanism.
• Precise spring pre-load adjustment — The retainer design enables fine-tuning of your suspension's spring pre-load, which directly affects ride height, handling characteristics, cornering stability and traction. This precision adjustment capability is critical for competitive drivers and serious hobbyists who demand responsive, predictable vehicle behaviour.
• Complete four-piece set — You receive four retainers in this package, providing coverage for all four shock positions on your X-Maxx or XRT platform. This means you can achieve balanced, symmetrical suspension setup across the entire vehicle.
• GTX shock compatibility — These retainers are specifically engineered for Traxxas GTX shock technology, ensuring perfect mechanical fit and optimal performance. GTX shocks are renowned for their responsiveness and durability in high-performance RC applications.
• Direct fit for multiple Traxxas models — These retainers are compatible with the entire X-Maxx and XRT family, including X-Maxx Belted 4WD Brushless RTR in all colour options, X-Maxx Ultimate variants, and XRT VXL-8S and XRT Ultimate models, making them a versatile upgrade for multiple platforms.

Technical Performance

The Traxxas Spring Retainer (Adjuster) exemplifies precision engineering in the RC hobby space. Constructed from high-grade aluminium and finished with professional grey anodising, these components resist corrosion and wear even in demanding conditions. The integrated O-ring assembly eliminates assembly variables and ensures consistent spring pre-load retention across all four shocks. Spring pre-load adjustment is fundamental to suspension tuning—by adjusting these retainers, you modify the initial compression state of your springs, which influences your vehicle's ride height, compliance over obstacles, anti-squat during acceleration, and overall handling balance. For bashers using 8S LiPo brushless power systems like the X-Maxx Belted 4WD Brushless RTR 8S or the performance-focused XRT VXL-8S, proper suspension geometry is critical for maintaining traction and predictability at high speeds. The grey-anodised finish is not merely cosmetic—anodising provides a protective oxide layer that extends component lifespan significantly, especially important in UK weather conditions where moisture exposure is frequent. These retainers represent the attention to detail that separates casual RC use from serious performance optimization.

What's in the Box

• 4x Spring Retainer (Adjuster) assemblies in grey-anodised aluminium
• Each retainer pre-assembled with integrated O-ring

Compatibility

The Traxxas Spring Retainer TRX7767-GRAY is compatible with the following Traxxas models:

• Traxxas X-Maxx Belted 4WD Brushless RTR 8S Monster Truck (Red, Green, Orange, Blue variants)
• Traxxas X-Maxx Ultimate 4WD Brushless RTR 8S (Green X and Blue X variants)
• Traxxas XRT VXL-8S 4WD Brushless (Red, Orange, Green, Black variants)
• Traxxas XRT Ultimate 4WD Brushless (Green X and Blue X variants)

Frequently Asked Questions

• What do spring retainers and adjusters do on an RC vehicle? — Spring retainers control the pre-load (initial compression) of your shock springs. By adjusting how far the retainer compresses the spring, you alter the effective spring rate, ride height, and how the suspension responds to terrain. Softer pre-load gives more suspension travel and compliance on rough terrain; firmer pre-load increases ride height and reduces bottoming-out, beneficial for flat, faster tracks.
• Are these spring retainers difficult to install? — Installation is straightforward. The retainers simply thread onto the shock body above the spring. Because they come pre-assembled with O-rings, you don't need to fiddle with separate components. Most users can install all four in under 15 minutes using basic tools.
• Will these grey retainers match my X-Maxx or XRT in different colours? — These grey-anodised retainers provide a neutral, professional appearance that works well on any colour X-Maxx or XRT. Traxxas also manufactures these in blue anodised finish if you prefer colour-matched components, but many users appreciate the grey for its versatility and sophisticated look.
• What is the difference between spring pre-load adjustment and suspension stiffness? — Pre-load adjustment (what these retainers do) changes the initial compression state and ride height but doesn't directly change spring stiffness. Spring stiffness relates to the spring material itself. Together, they give you complete suspension tuning control: choose different springs for overall stiffness, and use these retainers to fine-tune pre-load for optimal performance in specific conditions.
• Can I use these retainers if I've upgraded to different shocks? — No, these are specifically designed for Traxxas GTX shocks. They will not fit other shock designs. Always verify compatibility before purchase by checking your vehicle's shock specification.
• Are these suitable for beginners? — Whilst installation is beginner-friendly, understanding spring pre-load adjustment requires some suspension knowledge. Beginners will benefit from these components as they allow experimentation with suspension tuning, but may want to consult setup guides or experienced RC community members to understand how to optimise their specific driving style and terrain.
• Why does the colour matter—grey versus blue anodised? — Colour is purely aesthetic and does not affect performance. Choose grey if you prefer a neutral look across multiple vehicle colours, or choose blue if you're running blue Traxxas models and want visual consistency. The anodising process is identical; only the dye differs.

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 Spring retainer (adjuster), Grey-anodised aluminium, GTX shocks (4 pcs) (assembled with o-ring) TRX7767-GRAY 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.