Overview
The Fastrax 5X8X0.3mm Shims (10) FAST10-5 are essential precision components for any RC enthusiast working on their RC car, truck, buggy or crawler. Whether you're fine-tuning suspension geometry, adjusting differential settings, or compensating for wear in drivetrain components, these quality shims provide the exact spacing and adjustment capability that competitive RC builders and weekend bashers alike depend on. If you're serious about maintaining peak performance from your RC vehicles, having a stock of precision shims is absolutely fundamental to your workshop toolkit.
These nylon shims are manufactured by Fastrax, a trusted name in RC spare parts and accessories across the UK and beyond. With their compact 5mm inner diameter, 8mm outer diameter, and carefully specified 0.3mm thickness, these shims are designed to meet the precise tolerances required in modern RC vehicles. Whether you're running a competition-grade setup or a casual weekend basher, having the right shims on hand means you can make critical adjustments without delay, keeping your RC car or truck performing at its best.
Sold as a pack of 10 individual shims, this quantity gives you plenty of spares for multiple vehicles or to keep in reserve as you dial in your setup. RC enthusiasts throughout the UK rely on Fastrax components for consistent quality and reliability, and these shims are no exception.
Key Features
- Precision Thickness of 0.3mm — The exact 0.3mm thickness ensures accurate spacing adjustments for suspension components, differential settings, and drivetrain geometry, allowing you to achieve the precise tuning that transforms good performance into championship-winning setups on your RC vehicle.
- 5mm Inner Diameter — The 5mm bore is engineered to fit standard RC axle shafts and pins, ensuring compatibility with the most common RC car and truck components used across popular platforms in the UK market.
- 8mm Outer Diameter — The wider 8mm outer face provides excellent load distribution across bearing races and component mounting points, preventing localised stress concentration and extending the service life of your RC drivetrain components.
- Nylon Construction — Durable nylon material resists corrosion and moisture, making these shims ideal for both indoor track racing and outdoor bashing in wet British weather conditions, whilst remaining lightweight to minimise unsprung mass.
- Pack of 10 Shims — Ten individual shims provide ample stock for multiple vehicles, spare replacements, or different setup configurations, ensuring you're never caught short during a race day or bashout with your RC car or truck.
- Brand Trust and Quality — Fastrax is recognised throughout the RC community for delivering reliable, precision-engineered spare parts that meet exacting standards for fit and function.
Technical Performance
These shims represent the kind of precision engineering that separates amateur RC builds from championship-winning setups. The specified dimensions of 5mm inner diameter, 8mm outer diameter, and 0.3mm thickness are manufactured to tight tolerances, ensuring consistent performance across all ten pieces in the pack. Nylon material offers an excellent balance of durability and weight savings—critical considerations in modern RC vehicles where unsprung mass directly affects handling, acceleration, and overall responsiveness. The nylon composition also provides superior corrosion resistance compared to steel alternatives, which is particularly important if you're running your RC buggy, crawler, or truck in damp UK conditions or near salt-treated winter roads. Whether you're adjusting suspension camber, correcting differential preload, compensating for bearing wear, or fine-tuning steering geometry on your RC car, the ability to make incremental adjustments in 0.3mm steps gives you the granular control necessary to optimise performance for specific track conditions or driving styles.
What's in the Box
- 10 x Fastrax 5X8X0.3mm Nylon Shims
Frequently Asked Questions
- What are shims used for in RC cars and why do I need them? — Shims are thin spacers used throughout RC vehicles to fine-tune component spacing and geometry. They compensate for manufacturing tolerances, adjust suspension ride height and camber angles, set differential preload tension, and correct wear in drivetrain components. Having quality shims allows you to make precise adjustments that directly improve your RC car's handling, speed, and reliability without replacing entire components.
- Will these Fastrax shims fit my RC vehicle? — The 5mm inner diameter is a standard size used across most popular RC platforms in the UK market. If your vehicle uses standard 5mm axle shafts or pins—which includes most off-road buggies, trucks, crawlers, and competitive racing cars—these shims will be compatible. Always verify your specific vehicle's requirements before purchasing.
- Why is the 0.3mm thickness important? — The 0.3mm thickness allows you to make small but significant adjustments to your setup. In RC racing and bashing, even 0.3mm changes can affect suspension geometry, handling balance, and performance. Having multiple shims lets you stack them to achieve larger adjustments (0.6mm with two shims, 0.9mm with three, etc.) or dial in precise incremental changes.
- Are nylon shims better than steel for RC cars? — Nylon offers several advantages: it's lighter, which reduces unsprung mass and improves handling response; it resists corrosion better than steel, extending component life in damp British weather; and it's less likely to damage bearing races or precision surfaces if they shift slightly. Steel shims are heavier but may be preferred in specific high-load applications—nylon is the right choice for general RC car and truck use.
- How many shims should I use on my setup? — This depends entirely on your specific adjustment needs and vehicle setup. Some adjustments might require a single 0.3mm shim, while others might stack multiple shims (10 shims totals 3mm of spacing). The pack of 10 gives you flexibility to experiment across multiple vehicles or configurations without running out.
- Are these suitable for beginners? — Yes, absolutely. Shims are fundamental components that every RC enthusiast—from complete beginners to seasoned competitors—should have on hand. Using shims to make adjustments is straightforward and doesn't require specialist tools or knowledge, making them perfect for newcomers learning to maintain and tune their RC cars.
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 5X8X0.3Mm Shims (10) FAST10-5 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: FAST10-5
- Product Type: Precision Nylon Shims
- Inner Diameter: 5mm
- Outer Diameter: 8mm
- Thickness: 0.3mm
- Material: Nylon
- Quantity per Pack: 10 shims
- EAN Code: 5055323900358
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
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- If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
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- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.
