Traxxas Springs Rear Progressive Pink +10% Rate Slash 4X4 TRX6867

Overview

The Traxxas Springs, Rear (progressive, +10% rate, Pink) (2 pcs) TRX6867 represents a premium suspension tuning solution for discerning RC enthusiasts across the UK who demand precise handling control from their short course trucks. These custom-wound progressive-rate springs are engineered specifically for the Slash 4X4 platform, allowing you to fine-tune your vehicle's suspension characteristics to match your driving style, track conditions, and personal preferences. Whether you're a competitive racer looking to optimise your setup or a weekend basher seeking improved handling, these springs deliver the performance adjustability that separates good RC cars from truly exceptional ones.

RC car suspension tuning is one of the most effective ways to improve overall performance without upgrading major components. The fully adjustable suspension on the Slash 4X4 gives it an inherent advantage on any track or terrain, and with Traxxas' new progressive-rate tuning springs, you can hone your truck's handling to an even greater degree of precision. Available in four different rates to suit virtually any setup requirement, these springs allow drivers to dial in exactly the level of stiffness needed for optimal performance. The pink colour-coding makes identification quick and easy, whilst the durable powdercoated finish ensures these springs maintain their appearance through countless hours of running.

If you're searching for suspension upgrades for your Slash 4X4 online in the UK, these official Traxxas springs offer guaranteed compatibility and the quality you'd expect from the world's leading RC manufacturer. Unlike generic aftermarket springs, these are custom-wound specifically for Slash 4X4 geometry and weight distribution, ensuring perfect fitment and predictable handling improvements.

Key Features

• Progressive-Rate Design — The progressive-rate architecture allows small-bump compliance without compromising big-hit capability, meaning your truck absorbs minor track imperfections smoothly while maintaining composure during large impacts and jumps. This balanced approach delivers both comfort and control across varied terrain.
• Custom-Wound for Slash 4X4 — Each spring is engineered specifically for the Slash 4X4 platform, ensuring perfect integration with the truck's suspension geometry, weight distribution, and performance characteristics. Generic springs simply cannot offer this level of precision tuning.
• +10% Stiffer Rate (Pink) — These springs are 10% stiffer than stock, making them ideal for drivers seeking improved handling response, reduced body roll during cornering, and better weight transfer. This rate is perfect for tight, technical tracks where precise control matters most.
• Durable Powdercoated Finish — The high-quality white powdercoat protects the springs against rust, corrosion, and UV damage, guaranteeing lasting good looks and reliable performance even after extended outdoor use in typical British weather conditions.
• Colour-Coded Identification — The distinctive pink colour coding allows you to instantly identify the spring rate, eliminating confusion during setup changes or when switching between multiple spring sets. This simple feature saves valuable time during competitions or practice sessions.
• Sold in Pairs — You receive two rear springs in each package, providing complete rear suspension coverage for your truck. Front and rear springs are sold separately to allow independent tuning of each end.
• Four Available Rates — Traxxas offers four different spring rates to suit any setup: orange (20% softer than stock), green (10% softer), blue (20% stiffer), and pink (10% stiffer), allowing you to find your perfect setup.

Technical Performance

These rear springs represent the pinnacle of suspension engineering for 1/10-scale short course trucks in the UK market. The progressive-rate design is a sophisticated engineering solution that addresses one of the fundamental challenges in RC suspension tuning: the need to balance compliance with stiffness. Traditional fixed-rate springs force a compromise—either they're soft enough to handle small bumps but too soft for large impacts, or they're stiff enough for big hits but punish the chassis on minor imperfections. Progressive springs solve this problem by providing a soft initial response that gradually stiffens as the spring compresses, delivering the best of both worlds. The custom-wound construction ensures these springs match the precise specifications required by the Slash 4X4's suspension geometry, accounting for the truck's weight distribution, ride height, and roll characteristics. The +10% rate increase over stock springs reduces overall suspension compliance by approximately 10%, increasing the natural frequency of the chassis and improving responsiveness. This makes the springs particularly well-suited to technical, tight tracks where quick directional changes and precise cornering are essential. The durable powdercoated finish isn't merely cosmetic—it provides genuine protection against the elements, ensuring these springs remain reliable through countless sessions regardless of weather conditions typical to the UK. Whether you're running on tarmac at a local track or bashing through muddy terrain, the corrosion-resistant coating maintains both performance and appearance.

What's in the Box

• 2x Traxxas Rear Springs (Progressive Rate, +10% Stiffer, Pink)

Frequently Asked Questions

• What is a progressive-rate spring and why is it better than standard springs? — A progressive-rate spring has a variable rate that stiffens as it compresses. This means it provides excellent small-bump compliance—the ability to absorb minor track imperfections—whilst simultaneously offering excellent big-hit capability for landing jumps and absorbing large impacts. Standard fixed-rate springs cannot achieve both simultaneously, forcing you to choose between comfort and control. Progressive springs deliver both.
• Will these springs fit my Slash 4X4? — Yes, these springs are custom-wound specifically for the Slash 4X4 platform and are confirmed compatible with the following models: Traxxas Slash Ultimate 4x4 VXL 1:10 4WD Brushless Short Course Truck, Traxxas Slash VXL 1:10 4x4 RTR Short Course Truck (available in Orange, Red, Blue, and Green colours), and other Slash 4X4 variants. Always verify your specific model number before purchasing.
• What does the +10% stiffer rating mean, and is it right for me? — The +10% rate means these springs are 10% stiffer than the stock springs that come with your truck. This increased stiffness reduces overall suspension travel and increases the chassis's natural frequency, making the truck more responsive and reducing body roll during cornering. This rate is ideal for technical, tight tracks where precise handling is essential, or if you find your standard setup allows too much body roll. If you prefer a softer, more compliant suspension, the green springs (10% softer) or orange springs (20% softer) might be better choices. If you want even stiffer response, consider the blue springs (20% stiffer).
• Can I mix different spring rates front and rear? — Yes, absolutely. One of the great advantages of Traxxas' four-rate system is that you can mix and match rates front and rear to achieve your ideal setup. Some drivers prefer softer springs up front for better traction and compliance, paired with stiffer rear springs for improved cornering response. Experimenting with different combinations allows you to dial in the exact handling characteristics you prefer.
• How many springs do I get in each package? — Each package contains two springs—exactly what you need for the rear of your truck. Front springs are sold separately to allow independent tuning of front and rear suspension.
• Will these springs improve my lap times? — The right suspension setup can absolutely improve lap times by optimising traction, reducing body roll during cornering, and improving overall handling consistency. However, the perfect spring rate depends on your specific truck setup, driving style, track layout, and conditions. Some drivers will find the +10% stiffer rate immediately improves their times, whilst others may prefer a different rate. Many experienced racers in the UK keep multiple spring sets on hand to match changing conditions.
• How do I know which spring rate to choose? — If your truck currently feels like it rolls too much during cornering or feels sluggish in its response, the +10% stiffer pink springs are an excellent choice. If it feels too stiff and bouncy, try the softer green or orange options. The best approach is to start with one rate, document how the truck handles, then switch to a different rate and compare. Over time, you'll develop an intuition for which rates work best with your driving style.

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 Springs, Rear (progressive, +10% rate, Pink) (2 pcs) TRX6867 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.