Overview
The Fastrax 25T Jumbo Black Aluminium 3-in-1 Servo Horn is an essential upgrade for any RC enthusiast running a Futaba servo system. Whether you're building a competitive RC crawler, tuning your weekend basher, or maintaining your collection of RC cars in the UK, this premium servo horn delivers the precision, durability and versatility demanded by serious hobbyists. The 3-in-1 design provides multiple mounting options, allowing you to optimise servo arm geometry for your specific application, whether you're piloting rock crawlers, off-road buggies or any other RC vehicle type that benefits from adjustable servo control.
Manufactured by Fastrax, a recognised brand trusted by RC professionals and enthusiasts across the United Kingdom and beyond, this servo horn combines traditional quality engineering with modern materials science. The jumbo size offers enhanced leverage and control authority, whilst the premium black anodised aluminium construction ensures longevity and reliability even under the most demanding racing and bashing conditions. If you've ever struggled with servo binding, felt imprecise steering response, or needed flexibility in your servo arm configuration, this 3-in-1 horn represents a genuine upgrade that will transform how your RC car handles and responds to input.
Built to work seamlessly with 25-tooth servo splines, this Futaba-compatible servo horn is the professional's choice for anyone serious about extracting maximum performance from their RC setup. Whether you're preparing for competition or simply want the best available components for your hobby fleet, Fastrax delivers engineering excellence at an accessible price point.
Key Features
- 25-Tooth Servo Compatibility — Designed specifically for 25-tooth servo splines, ensuring a secure, perfectly machined fit with Futaba servo systems and compatible units, eliminating the wobble and inaccuracy that comes with poorly fitted servo horns.
- Jumbo Size Design — The larger arm provides significantly greater mechanical advantage and leverage compared to standard servo horns, translating to more responsive steering control and improved precision in steering geometry tuning for RC crawlers, buggies and competition vehicles.
- 3-in-1 Multi-Mount Configuration — Offers three different mounting positions on a single horn, allowing you to adjust the servo arm angle and control throw length without needing multiple horns in your spare parts box, making this an economical and practical choice for experimenting with different steering setups.
- Premium Black Anodised Aluminium — Constructed from high-quality aluminium with black anodised finish for superior corrosion resistance, lightweight construction, and professional appearance that looks impressive whether displayed in a display case or performing on the track.
- Futaba Servo Spline Fitment — Engineered for perfect compatibility with Futaba 25T servo saver or fixed mounting systems, ensuring hassle-free installation and reliable performance from day one without modification or adaptation required.
- Professional-Grade Engineering — Manufactured to tight tolerances by Fastrax, a brand recognised for delivering quality components that meet the exacting standards of competitive RC racers, experienced bashers and professional hobbyists throughout the UK and Europe.
Technical Performance
This servo horn exemplifies Fastrax's commitment to precision manufacturing and material science excellence. The jumbo arm provides substantially more control authority than standard servo horns, meaning smoother steering inputs, reduced servo strain, and more consistent handling across varying terrain and driving conditions. The 25-tooth specification ensures compatibility with most modern Futaba servo units commonly found in competitive RC crawlers, off-road buggies, and precision RC vehicles. The black anodised aluminium construction delivers the ideal balance between weight savings and structural rigidity — crucial for maintaining steering precision and servo response integrity during high-speed bashing or competition racing. The 3-in-1 multi-mount design represents genuine engineering foresight, eliminating the need to purchase multiple servo arms when experimenting with different steering geometries or servo throw lengths. Whether you're fine-tuning a competition vehicle for a specific track layout or maintaining a diverse collection of RC cars in different configurations, this servo horn adapts to your needs. The anodised aluminium finish resists corrosion from moisture, road debris and the general wear that comes with regular RC use, ensuring this component maintains its performance characteristics and appearance for years of reliable service.
What's in the Box
- Fastrax 25T Jumbo Black Anodised Aluminium Servo Horn (single unit)
- 3-in-1 multi-mount configuration for flexible servo arm positioning
Frequently Asked Questions
- What Futaba servos does this horn fit? — This servo horn is designed for Futaba servo units with 25-tooth servo splines. Check your servo documentation to confirm spline compatibility before ordering. Most modern Futaba servo products use this standard spline configuration.
- Why would I need a 3-in-1 servo horn instead of a standard horn? — The 3-in-1 design provides three different mounting positions on a single horn, allowing you to adjust servo throw distance and steering geometry without purchasing multiple horns. This makes it invaluable for RC drivers who experiment with different servo arm angles or need flexibility in setup tuning.
- Is this servo horn suitable for competitive RC racing? — Yes, absolutely. Fastrax components are used by competitive RC racers throughout the UK and Europe. The precision engineering, jumbo size design, and premium aluminium construction make this horn suitable for both serious competition and weekend bashing.
- What's the advantage of the jumbo size? — The larger arm provides greater mechanical leverage, resulting in more responsive steering control and less servo strain during aggressive driving. This translates to improved handling precision and longer servo lifespan, particularly beneficial for RC crawlers and off-road buggies where steering demands are high.
- What makes black anodised aluminium better than plastic servo horns? — Anodised aluminium is significantly more durable, corrosion-resistant, and maintains its structural rigidity under demanding conditions. Unlike plastic horns that can crack or flex, aluminium provides consistent performance and longevity, making it a worthwhile investment for serious hobbyists.
- Can I use this horn on other brand servos? — This horn is engineered specifically for Futaba 25-tooth spline servo systems. While some compatible servo brands may use the same spline specification, we recommend confirming compatibility with your specific servo before purchase.
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 25T JUMBO BLACK ALUM 3-IN-1 SERVO HORN (FUTABA) FAST324B 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: FAST324B
- Product Type: Servo Horn
- Servo Tooth Count: 25T
- Servo Horn Size: Jumbo
- Servo Horn Configuration: 3-in-1 multi-mount design
- Material: Aluminium (anodised black)
- Servo Compatibility: Futaba 25-tooth spline systems
- Mounting Type: 25T Servo Saver or Fixed
- Finish: Black anodised
- EAN: 5055323954412
- Stock Status: In stock
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.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- 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.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
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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.