Overview
The Fastrax 1/10th 85mm Spring Set represents an essential upgrade for any RC car enthusiast looking to fine-tune their vehicle's suspension performance. Whether you're a seasoned racer, a weekend basher, or exploring the world of RC cars for the first time, having the right suspension setup is crucial to achieving optimal handling and control on the track or terrain. This comprehensive three-piece spring set from Fastrax provides you with multiple stiffness options to match your driving style, track conditions, and personal preferences. Available in the UK RC market, this suspension upgrade is designed specifically for 1/10 scale RC vehicles and offers serious performance benefits at an affordable price point.
Suspension tuning is one of the most effective ways to improve your RC car's handling characteristics, and this spring set gives you the flexibility to experiment and find the perfect setup for your needs. Each spring in this set is colour-coded for easy identification and organisation, making it simple to remember which stiffness level you're using at any given time. The 85mm length is a standard measurement for many popular 1/10 scale RC models, ensuring broad compatibility across various platforms used in the UK RC community. Whether you're upgrading a Traxxas, Team Associated, Team Losi, Tamiya, HPI, Axial Racing, or other 1/10 scale models, these springs can help you unlock better performance from your existing setup.
Fastrax has built a strong reputation in the RC hobby for producing high-quality, reliable option parts that deliver genuine performance improvements. This spring set is no exception, offering genuine components that will help you dial in your suspension geometry and achieve the handling balance that suits your driving style. By offering soft, medium, and hard spring options in a single set, Fastrax makes it incredibly easy to test different setups without needing to make multiple separate purchases, saving you both time and money while optimising your RC car UK setup.
Key Features
- Three-Piece Spring Set with Graduated Stiffness Levels — This set includes three different spring stiffness options (soft, medium, and hard) allowing you to experiment with suspension tuning and find the perfect balance for your driving style, track conditions, and vehicle weight. Having all three options in one set means you can quickly swap springs to adapt to different terrains or racing surfaces without purchasing springs individually.
- Colour-Coded for Easy Identification — Each spring is colour-coded (blue for soft, red for medium, black for hard) making it incredibly easy to identify which spring you're currently using and to keep your spare springs organised in your toolkit. This visual system eliminates confusion and makes the tuning process more efficient.
- 85mm Length Standard Size — The 85mm measurement is a widely compatible size for numerous 1/10 scale RC car models, ensuring these springs will work with many of the popular ready to run RC vehicles available in the UK market. Always verify compatibility with your specific model before purchasing.
- Quality Construction from Fastrax — Fastrax manufactures these springs to consistent quality standards, ensuring reliable performance and longevity. The springs are engineered to maintain their stiffness characteristics over extended use, providing stable and predictable suspension behaviour during driving sessions.
- Suspension Tuning Made Accessible — By providing three stiffness options in a single affordable set, these springs make suspension tuning accessible to hobbyists of all skill levels, from complete beginners just discovering RC car tuning to experienced competitors looking to dial in their setup for specific track conditions.
Technical Performance
The Fastrax 1/10th 85mm Spring Set is engineered to provide precise suspension tuning capabilities for 1/10 scale RC vehicles. These springs are manufactured with consistent material composition and precise spring rate specifications to ensure each stiffness level delivers predictable handling characteristics. The soft (blue) springs provide increased suspension compliance, allowing greater vertical wheel travel and improved traction on rough or uneven terrain, making them ideal for bashers and off-road drivers who encounter varied surfaces. The medium (red) springs offer a balanced approach, providing reasonable compliance whilst maintaining adequate support for the vehicle chassis, making them a versatile choice for general driving and recreational use. The hard (black) springs deliver maximum support with minimal compression, offering superior chassis stability and reduced roll during aggressive cornering, making them preferred by competitive drivers on well-prepared tracks. The 85mm length is specifically matched to common 1/10 scale shock absorber designs used across numerous platforms, ensuring proper installation and optimal suspension geometry. The engineering principles behind these springs focus on delivering consistent rate progression and reliable performance across multiple heat cycles, so your suspension characteristics remain stable throughout extended driving sessions. Whether you're running a brushless RC vehicle on tarmac or taking a ready to run RC truck through muddy terrain, having the correct spring stiffness helps optimise weight transfer, tyre contact patch, and overall vehicle dynamics for maximum performance and control.
What's in the Box
- One blue/soft 85mm spring
- One red/medium 85mm spring
- One black/hard 85mm spring
Frequently Asked Questions
- What RC cars are compatible with the Fastrax 1/10th 85mm springs? — These springs are designed for 1/10 scale RC vehicles using 85mm shock absorbers. Compatibility extends across many popular platforms including Traxxas models, Team Associated cars, Team Losi vehicles, Tamiya models, HPI options, Axial Racing crawlers, and numerous other 1/10 scale RC cars available in the UK. However, always verify the shock absorber length and mounting specifications for your specific model before purchasing, as some vehicles may use different spring sizes.
- How do I know which spring stiffness to use for my RC car? — Start with the medium (red) springs as a baseline. If your vehicle feels too bouncy or unstable, switch to the hard (black) springs for more support. If the car feels too stiff or skips across bumps, switch to the soft (blue) springs for better traction and compliance. Your preference will depend on your driving style, the terrain you're using, and your vehicle's total weight including battery and electronics.
- What's the difference between soft, medium, and hard springs? — Soft springs compress more easily and allow greater suspension travel, providing better traction on rough terrain and reducing the shock felt from impacts. Medium springs offer balanced characteristics suitable for mixed driving. Hard springs resist compression, providing maximum support and stability during aggressive driving, ideal for racing on smooth tracks or reducing body roll in high-speed cornering.
- Can I mix and match different spring stiffness levels on my RC car? — Yes, many drivers use different spring stiffness front and rear to tune their vehicle's handling characteristics. However, this is an advanced tuning technique and requires understanding of suspension geometry. For beginners, using the same stiffness front and rear is recommended.
- Are these genuine Fastrax springs? — Yes, when purchased from RC Model Shop you receive authentic Fastrax manufactured components. Fastrax is a recognised brand in the RC hobby community, known for producing quality option parts that enhance vehicle performance.
- Will these springs fit my brushless or nitro RC car? — These springs are suspension components that work independently of your motor type, so they're compatible with both brushless electric RC vehicles and nitro-powered models. The 85mm size is the determining factor for compatibility, not whether your car is brushless or nitro.
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 1/10TH 85mm SPRING SET SOFT/BLUE,MED/RED,HARD/BLACK FAST157-S 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.
- Brand: Fastrax
- Model Number: FAST157-S
- Scale: 1/10
- Spring Length: 85mm
- Set Contents: 3-piece spring set
- Spring Stiffness Options: Soft (blue), Medium (red), Hard (black)
- Suspension Type: Coil springs for shock absorbers
- Suspension Tuning Type
- EAN: 5056135710845
- Product Category: Option Parts, Suspension Tuning
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