Fastrax Blue Anodised Aluminium Lightweight Clutch Shoe with Dual Springs FAST901

Overview

The Fastrax Blue Alu. Lightweight Clutch Shoe (Inc 1.0 & 1.1mm Springs) FAST901 is a premium aftermarket clutch upgrade designed for serious nitro RC enthusiasts in the UK who demand precise engine tuning and optimal performance from their vehicles. This anodised aluminium clutch shoe set represents a significant step up from standard equipment, offering the kind of fine-tuning capability that competitive RC drivers and experienced hobbyists rely on to dial in their machines perfectly. Whether you're running a high-grip traction track or experimenting with different engine setups, this lightweight clutch shoe delivers the control and reliability you need to get consistent results.

Manufactured by Fastrax, a recognised name in quality RC engine spares and tuning components, this clutch shoe is engineered to give you control over when your engine engages with the drivetrain. Unlike heavier standard options, the lightweight design of this clutch shoe means it will engage later up the RPM range, making it particularly well-suited to less torquey engines that benefit from a gentler engagement curve. This characteristic makes it an excellent choice for builders who want to protect their drivetrains or achieve smoother power delivery across different track conditions throughout the UK and beyond.

What truly sets this product apart is the inclusion of two different spring options – 1.0mm and 1.1mm springs – allowing you to fine-tune the engagement point precisely to match your specific engine characteristics, fuel type, and track conditions. This level of adjustability transforms the clutch from a simple component into a tuning tool that experienced RC car users will appreciate and exploit to gain an edge in performance.

Key Features

• Anodised Aluminium Construction — The clutch shoe is manufactured from quality anodised aluminium, which provides excellent durability, lightweight performance, and corrosion resistance that will endure repeated use and exposure to nitro fuel vapours and track conditions. The anodisation process also creates an attractive blue finish that looks professional and indicates premium quality.
• Lightweight Design — Unlike heavier steel or standard clutch shoes, this lightweight aluminium construction means reduced rotating mass, which allows the clutch to engage later in the RPM range for smoother, more controllable power delivery. This is particularly beneficial for engine setups that lack aggressive torque characteristics or for drivers who prioritise control over raw acceleration.
• High Bite for High-Grip Tracks — The shoe profile and material choice have been engineered to deliver high bite, providing excellent grip and traction when running on high-grip competition tracks where maintaining consistent contact with the drivetrain is critical to performance and reliability.
• Dual Spring Tuning System — Inclusion of both 1.0mm and 1.1mm engagement springs means you can adjust when the clutch engages simply by swapping springs, allowing you to optimise performance without replacing the entire clutch assembly. This makes it easy to adapt to different engines, track conditions, or tuning preferences.
• 1.0mm Spring Option — The softer 1.0mm spring provides slightly earlier engagement and is ideal when you want maximum power delivery or are running an engine with strong torque characteristics that benefits from immediate drivetrain connection.
• 1.1mm Spring Option — The slightly stiffer 1.1mm spring delays engagement slightly, providing smoother power application and extra protection for the drivetrain when running less powerful engines or when prioritising consistency over outright aggression.
• Tuning Flexibility — By including two springs as standard, Fastrax acknowledges that no two RC setups are identical, and this product gives you the freedom to experiment and dial in the perfect engagement point for your specific requirements without purchasing additional components.

Technical Performance

The Fastrax Blue Alu. Lightweight Clutch Shoe FAST901 represents advanced engineering in the field of nitro RC engine components. The use of anodised aluminium as the primary material is a deliberate choice by engineers who understand that clutch performance depends on balancing weight, durability, and engagement characteristics. Nitro RC cars operate in a demanding environment where clutch components must withstand extreme temperatures, repeated engagement cycles, and exposure to corrosive nitro fuel. The anodised finish provides a hard, protective barrier against these elements whilst the aluminium substrate keeps overall weight minimal. The lightweight nature of this shoe means the rotating assembly has less inertia, allowing the engine to reach the engagement RPM threshold more smoothly. This is particularly important for engines that produce lower torque outputs or for drivers who want to minimise driveline shock. The inclusion of two different spring rates – 1.0mm and 1.1mm – acknowledges that clutch engagement is not one-size-fits-all; different engines, different fuel blends, and different track surfaces all influence the optimal engagement point. By providing both options in a single package, Fastrax enables RC enthusiasts to experiment and optimise their setup without purchasing multiple products. The high-bite shoe profile ensures excellent contact with the flywheel during engagement, maintaining consistent power transmission and reducing the possibility of clutch slip under load. For serious nitro RC users in the UK who demand precision and flexibility from their engine tuning components, this lightweight clutch shoe delivers exactly that.

What's in the Box

• Fastrax Blue Anodised Aluminium Lightweight Clutch Shoe
• 1.0mm Engagement Spring
• 1.1mm Engagement Spring

Frequently Asked Questions

• What vehicles is this clutch shoe compatible with? — This is a quality aftermarket clutch component that is used across many nitro-powered RC vehicles. The FAST901 is categorised as a general option part suitable for various RC platforms, and it's worth checking your specific model's documentation or consulting with RC specialists to confirm compatibility with your particular build. Different vehicles may require different mounting approaches or bearing sizes.
• How do the two different springs change performance? — The 1.0mm spring is softer and allows earlier engagement, providing quicker connection between engine and drivetrain with more immediate power delivery. The 1.1mm spring is slightly stiffer, delaying engagement slightly for smoother, more controlled power application and reduced shock to the drivetrain, making it ideal for less powerful engines or when you want maximum consistency and longevity.
• Is this suitable for beginners? — This product is best suited to experienced RC nitro users who understand engine tuning and clutch systems. Beginners would be better served starting with a standard clutch shoe before progressing to tuning-focused components like this one. If you're new to nitro RC, we recommend speaking with our team at RC Model Shop to determine the right upgrade path for your experience level.
• What is the difference between the FAST901 and the FAST900? — The FAST901 is the lightweight version, slightly lighter than the FAST900 standard model, which means it engages later up the RPM range and is particularly suited to less torquey engines. If you're running a lower-powered engine or prefer softer engagement characteristics, the FAST901 is the better choice.
• How often should I replace my clutch shoe? — Clutch shoes are wear items that gradually deteriorate through normal use. Regular inspection during maintenance will show if the shoes are glazed, cracked, or no longer making clean contact with the flywheel. Typical replacement intervals depend on usage intensity, but many racers carry spare clutch components for competition days.
• Can I use just one of the included springs? — Yes, you only need one spring installed at a time. The package includes both to allow you to experiment and find the best engagement point for your setup, but you'll fit whichever spring suits your requirements and store the other as a spare.

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 Blue Alu. Lightweight Clutch Shoe (Inc 1.0 & 1.1mm Springs) FAST901 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.