FTX Supaforza Front Shock Spring 4.5T FTX9585

Overview

The FTX Supaforza Front Shock Spring 4.5T is an essential replacement or upgrade component for your FTX Supaforza RC car. This front shock spring is specifically engineered to provide the correct suspension performance and handling characteristics that your Supaforza demands. Whether you're a dedicated RC enthusiast looking to fine-tune your setup or a UK-based RC hobbyist seeking reliable spare parts, this spring is a critical component for maintaining optimal performance on the track or off-road terrain. The 4.5T specification indicates the spring rate, allowing you to customise your suspension setup to match your driving style and terrain conditions.

As part of the comprehensive FTX Supaforza spares range, this front shock spring integrates seamlessly with the Supaforza's sophisticated suspension geometry. FTX is a recognised manufacturer in the RC hobby market, delivering quality components that meet the demands of both recreational bashers and competitive drivers across the UK and beyond. The Supaforza platform itself represents a significant achievement in accessible performance RC car design, and maintaining it with genuine FTX parts ensures your investment continues to deliver the handling and reliability you expect.

This replacement spring is ideal for drivers who want to experiment with different suspension setups, replace worn or damaged springs, or optimise their Supaforza for specific track conditions. Having spare suspension components on hand is a hallmark of serious RC car enthusiasts, and stocking the correct spring rate means you're always ready to adapt your setup without delays.

Key Features

• 4.5T Spring Rate — The 4.5 turn specification provides a specific level of suspension stiffness that directly influences how your Supaforza handles over bumps, during acceleration and braking, and through cornering. Different spring rates allow you to fine-tune your setup, with softer springs offering more grip and compliance over rough terrain, whilst stiffer springs improve responsiveness and control in high-speed driving.
• Front Suspension Specific — This spring is engineered specifically for the front shock absorber position on your Supaforza, ensuring precise fitment and optimal suspension geometry. Using the correct spring for the front position is crucial because the front wheels handle steering input and support the vehicle's weight distribution differently than the rear.
• Genuine FTX Component — Manufactured by FTX to original specifications, this spring maintains the integrity of your Supaforza's suspension system. Genuine parts ensure compatibility with the Assembled Shock Absorber (FTX9584) and other suspension components in the Supaforza range, eliminating compatibility concerns that might arise from aftermarket alternatives.
• Easy Replacement — Swapping out your shock spring is a straightforward maintenance task that requires no special tools or expertise. This makes it perfect for UK RC enthusiasts of all skill levels who want to experiment with setup changes without requiring professional assistance.
• Part of the Extensive Supaforza Range — This spring is one component in FTX's comprehensive Supaforza spares catalogue, which includes everything from differentials and chassis components to electronics and lighting upgrades. Having access to the full range means you can build and maintain your Supaforza exactly as you need it.

Technical Performance

The FTX Supaforza Front Shock Spring 4.5T is a precision-manufactured suspension component that plays a fundamental role in determining your RC car's handling characteristics. Spring rate, measured in turns (T), is a critical specification that affects suspension compliance, vehicle height, weight transfer during acceleration and braking, and overall corner speed. The 4.5T rating positions this spring as a moderate stiffness option within the Supaforza lineup, which also offers 5T (FTX9586) and 6T (FTX9587) alternatives for drivers who prefer softer or stiffer setups respectively. The engineering behind shock springs involves careful metallurgy and coil geometry to ensure consistent performance across temperature ranges and extended use. This front-specific spring works in conjunction with the Supaforza's sophisticated front differential assembly and articulated suspension geometry to deliver balanced handling. When paired with the Assembled Shock Absorber (FTX9584) and supported by the vehicle's aluminium chassis construction and precision drivetrain, this spring contributes to the overall suspension performance that makes the Supaforza a capable and enjoyable RC car to drive. Quality springs maintain their rate over thousands of cycles, unlike degraded or damaged springs that lose stiffness and compromise handling predictability.

What's in the Box

• FTX Supaforza Front Shock Spring 4.5T (FTX9585) — one individual replacement spring

What You Need to Complete

• Supaforza-compatible shock absorber assembly or complete Supaforza RC car to install this spring into
• Basic tools for suspension maintenance (screwdrivers, hex keys)

Frequently Asked Questions

• What does the 4.5T specification mean on this RC shock spring? — The 4.5T indicates the spring rate or stiffness level, measured in turns of the spring coil. This specification determines how much the spring compresses under load and how quickly it returns to its original position. A 4.5T spring is considered moderately stiff, offering a balance between suspension compliance and responsiveness. Different turn ratings allow you to customise how your Supaforza handles over different terrain types and driving conditions, making it possible to optimise your setup without upgrading major components.
• Will this front shock spring fit my FTX Supaforza? — Yes, this spring is designed specifically for the FTX Supaforza front shock absorber position. FTX manufactures this as part of their official Supaforza spares range, ensuring perfect compatibility with the vehicle's suspension geometry and the Assembled Shock Absorber (FTX9584). However, ensure you're installing it in the front position, as the rear suspension may require different specifications.
• How do I choose between the 4.5T, 5T, and 6T spring options? — The three available spring rates offer different handling characteristics. The 4.5T spring (this product) is the softest of the three options, providing better suspension compliance and grip over rough terrain. The 5T option (FTX9586) offers a middle ground for balanced performance, whilst the 6T option (FTX9587) is the stiffest, ideal for high-speed driving, low-traction surfaces, or if you prefer more responsive steering. Your choice depends on your driving style, the terrain you frequent, and your vehicle's current setup.
• When do I need to replace my shock springs? — Shock springs typically need replacement when they become damaged, develop cracks, lose their original stiffness, or if you want to experiment with different suspension setups. Many UK RC enthusiasts maintain spare springs to avoid downtime and to facilitate quick setup changes between track sessions. If your Supaforza feels less responsive than it did when new, or if the suspension feels unstable, worn springs may be the culprit.
• Is this suitable for beginners? — Absolutely. Whilst suspension tuning might seem advanced, the actual process of swapping a shock spring is straightforward and requires only basic hand tools. For beginners, simply using the 4.5T spring as a replacement ensures you maintain your vehicle's original handling characteristics. As you gain experience and learn how spring rate affects performance, you can experiment with the softer or stiffer alternatives to develop your understanding of suspension tuning.
• What is the difference between this and similar models? — FTX offers this spring in three different stiffness ratings specifically for the Supaforza: 4.5T, 5T, and 6T. The 4.5T (this product) is the softest and most compliant option, the 5T offers a balanced middle ground, and the 6T is the stiffest for maximum responsiveness. Your choice should reflect your driving style and the conditions you typically encounter. If you're unsure which rate to choose, the 4.5T provides a forgiving setup that works well across varied terrain.

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 FTX SUPAFORZA FRONT SHOCK SPRING 4.5T FTX9585 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.