Fastrax 25T Black Aluminium Double Servo Horn Savox Futaba FAST316B

Overview

The FASTRAX 25T BLACK ALUMINIUM DBL SERVO HORN (SAVOX/FUTABA) FAST316B is a heavy-duty servo arm designed to beef up your RC car's steering or throttle assembly with professional-grade strength and reliability. Whether you're running a competitive RC buggy, trophy truck, or crawler through demanding terrain across the UK, this black anodised machined aluminium servo horn delivers the durability and precision you need to keep your vehicle performing at its best. Built by Fastrax, a recognised manufacturer of quality RC components, this servo horn is engineered to withstand the punishing loads and vibrations that come with serious RC driving.

This is an essential upgrade for any RC enthusiast looking to improve the responsiveness and durability of their steering system. If you're tired of broken plastic servo arms or flexing under load, this solid aluminium construction offers a significant step up in performance and longevity. The 25-tooth spline size makes it compatible with a wide range of popular servo brands, particularly Savox and Futaba servos, which are trusted choices among RC racers and hobby drivers across the UK and beyond.

Available in ready-to-install condition with all necessary hardware included, this servo horn is perfect for upgrading existing RC cars or building new competitive setups. Whether you're a weekend basher, a competitive racer, or a serious RC enthusiast, the FASTRAX 25T servo horn represents genuine value and engineering quality that will enhance your RC experience.

Key Features

• Black Anodised Aluminium Construction — Manufactured from high-grade aluminium and finished with black anodising, this servo horn resists corrosion and oxidation while providing an attractive, professional appearance that complements modern RC vehicles. The anodised surface also improves durability and protection against the elements.
• Double Servo Arm Design — Features a dual-arm configuration that distributes forces more effectively than single-arm designs, reducing stress concentration and improving overall strength and stability of your steering linkage system.
• Additional Screw Clamping — Equipped with extra screw clamping points for enhanced mechanical strength, these fasteners ensure your servo arm stays securely attached to the servo spline under the intense demands of RC driving, preventing slippage and maintaining precise steering response.
• 25-Tooth Spline Fitment — Specifically designed with a 25-tooth spline to fit Savox and Futaba servo types, two of the most popular and respected servo brands used in RC cars, buggies, crawlers and trucks across the UK and internationally.
• Includes Installation Hardware — Comes complete with mounting screw and aluminium countersunk washer, providing everything you need to install the servo horn immediately without requiring additional purchases or sourcing of compatible fasteners.
• Fixed Servo Saver Configuration — Designed as a fixed servo horn rather than a servo saver, this makes it ideal for applications where you need consistent, direct control response without shock absorption, such as precision steering setups or competitive racing applications.
• Professional Machining Standards — Each servo horn is precisely machined to tight tolerances, ensuring consistent fitment and perfect alignment with your servo spline, critical for maintaining accurate steering geometry and eliminating play in your RC vehicle's control systems.

Technical Performance

The FASTRAX 25T servo horn represents a significant performance upgrade over standard plastic servo arms found on many ready-to-run RC cars and budget kits. Constructed from solid aluminium rather than plastic, this component exhibits virtually zero flex or deflection under the high-torque loads generated by powerful servos during aggressive steering inputs. The overall length of 49mm provides an optimal balance between mechanical advantage and packaging constraints, allowing you to fit this servo horn into most RC cars without interference with other components or the vehicle chassis. The black anodised finish not only looks professional but also provides genuine corrosion resistance, making this servo horn suitable for use in varied UK weather conditions, including damp environments and vehicles that encounter water during off-road driving or outdoor racing sessions. The dual-arm design and additional screw clamping work together to distribute stress evenly across the mounting points, which significantly extends component lifespan and reduces the likelihood of failure during high-performance driving. Real-world testing by experienced RC users has confirmed that this servo horn shows no warping even when subjected to sustained loads from high-torque servos, a common complaint with plastic alternatives. The M3-sized threaded holes throughout the servo horn provide secure attachment points for linkages and control arms, ensuring your steering geometry remains consistent throughout each driving session. This engineering approach makes the FASTRAX 25T servo horn an excellent choice for competitive RC buggy racing, trophy truck applications, RC crawlers, and any discipline where steering precision and reliability are paramount.

What's in the Box

• FASTRAX 25T Black Aluminium Double Servo Horn
• Mounting screw
• Aluminium countersunk washer

Frequently Asked Questions

• Will this servo horn fit my Savox or Futaba servo? — Yes, this servo horn is specifically designed with a 25-tooth spline that is compatible with both Savox and Futaba servo types, which are among the most popular servo brands used in competitive and recreational RC vehicles throughout the UK. The 25-tooth specification is a standard fitment for these manufacturers, making this horn an ideal upgrade for vehicles already equipped with these servo brands.
• What is the advantage of an aluminium servo horn over plastic? — Aluminium servo horns offer superior strength and zero flex compared to plastic alternatives, which can deflect or warp under high loads from powerful servos. The aluminium construction ensures your steering inputs remain precise and consistent, critical for maintaining control in competitive racing or technical driving situations. Additionally, the black anodised aluminium finish resists corrosion better than plastic and will last significantly longer through repeated use.
• Is this suitable for high-torque servos? — Absolutely. This servo horn has been tested and proven to perform flawlessly with high-torque servos without warping or flexing, even under sustained heavy loads. The dual-arm design and additional screw clamping provide exceptional mechanical strength, making it ideal for powerful servos commonly used in modern RC buggies and trucks. Real-world users have reported excellent performance with 15kg servos and higher.
• What is the difference between this servo horn and others available? — The FASTRAX 25T stands out due to its combination of black anodised aluminium construction, dual-arm design, and additional screw clamping points for enhanced strength. Many competitor servo horns use plastic construction or single-arm designs, which are more prone to flexing and failure under load. The precision machining and professional finishing of the FASTRAX horn ensure superior fitment and durability compared to budget alternatives.
• Will this servo horn fit my specific RC vehicle? — This servo horn is compatible with any RC vehicle equipped with a Savox or Futaba servo featuring a 25-tooth spline. However, due to variations in servo positioning and linkage geometry, some RC models may require different servo horn lengths or designs. Some users have reported excellent fitment on trophy trucks and buggies, though fitment on certain Losi models may require verification. We recommend checking your vehicle's servo specifications before purchasing to ensure compatibility.
• What maintenance does this servo horn require? — The aluminium construction requires minimal maintenance. Occasional cleaning with a dry cloth will keep it looking professional. The anodised finish is durable and resistant to corrosion, so it requires no special treatment. As with all servo components, ensure mounting screws remain tight through regular inspections, particularly after intensive driving sessions.

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 BLACK ALUMINIUM DBL SERVO HORN (SAVOX/FUTABA) FAST316B 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.