Futaba Alloy Twin Arm 40mm Blue RC Servo Horn FUTEBS3434

Overview

The Futaba Alloy Twin Arm 40mm (1.6") in Blue is a precision-engineered servo horn accessory designed for RC enthusiasts and builders across the UK who demand reliability and quality in their radio control projects. Whether you're setting up a new RC car, buggy, truck or crawler, this compact aluminium twin arm offers a neat, durable solution for precise linkage and control applications. Manufactured by Futaba, a brand recognised globally since 1948 and leading the way in radio control since 1962, this component represents the quality and attention to detail that RC model builders have come to expect from one of the industry's most trusted names.

This twin arm is built from high-quality aluminium, delivering a strong yet lightweight profile that keeps your RC setup tidy whilst adding a smart blue finish. The 40mm overall length makes it an ideal choice for compact installations where space is at a premium, yet you still need reliable mechanical linkage for servo control. Whether you're a seasoned RC competitor, a weekend basher, or just discovering the world of RC hobby building for the first time, this Futaba servo horn accessory is a practical addition to your spares box and an essential component for any serious RC builder in the UK.

Available through RC Model Shop, an authorised Futaba stockist, this component is fully supported with expert advice and customer care. The Alloy Twin Arm is part of Futaba's extensive range of servo horns and accessories, meaning you can build complete, professional-grade RC setups with confidence, knowing that every component meets the exacting standards Futaba has maintained for over 70 years in the radio control industry.

Key Features

• Aluminium Construction — Built from premium aluminium material, this twin arm provides exceptional strength-to-weight ratio, ensuring your RC car, buggy or truck maintains responsive handling without adding unnecessary mass to your setup. Aluminium is a proven choice in RC engineering because it resists corrosion whilst remaining lightweight enough for high-performance applications.
• Compact 40mm Length — At just 40mm (1.6 inches) overall length, this twin arm is perfectly sized for tight installation spaces where you need precise servo linkage control without excessive mechanical leverage. The compact dimensions make it ideal for modern, space-efficient RC designs across all vehicle types.
• Professional Blue Finish — The smart blue colour provides excellent visibility during assembly and maintenance, whilst also contributing to the professional appearance of your completed RC model. The durable finish is designed to withstand the rigours of regular RC hobby use without fading or chipping easily.
• Twin Arm Design — The dual-arm configuration provides balanced mechanical advantage and control authority, essential for precise servo actuation in steering linkages, throttle control, and other critical RC applications. This design is favoured by professional RC builders and competition enthusiasts alike.
• Futaba Quality Assurance — As an official Futaba product, this servo horn meets the brand's stringent quality standards and is manufactured to specifications that have earned Futaba recognition as a leader in radio control technology since 1962. You can trust this component to perform reliably for years of RC hobby enjoyment.
• Minimal Weight — With a shipping weight of just 0.01kg, this ultra-lightweight component won't compromise your RC vehicle's performance, acceleration or handling characteristics, making it ideal for weight-sensitive builds where every gram counts.

Technical Performance

The Futaba Alloy Twin Arm 40mm is engineered with precision manufacturing standards that Futaba has perfected over decades of radio control innovation. The aluminium material selection reflects professional RC engineering principles: it offers superior strength compared to plastic alternatives whilst remaining significantly lighter than steel options, making it the optimal choice for serious RC builders. At 40mm in length, this twin arm provides the ideal balance between mechanical advantage and compact installation footprint, suitable for a wide variety of RC applications from electric RC cars and buggies to more complex RC truck setups. The dual-arm configuration distributes control forces evenly, reducing stress concentrations and improving overall system reliability during extended RC hobby sessions. The carefully chosen dimensions and manufacturing tolerances ensure that this component integrates seamlessly with Futaba servo systems and standard RC linkage hardware, whilst the robust aluminium construction guarantees it will withstand the mechanical stresses of regular RC use without bending, cracking or permanent deformation. The professional blue finish is applied using durable coating methods that resist wear from repeated assembly, disassembly and adjustment—essential for builders who regularly maintain and fine-tune their RC setups. Whether you're building a high-speed RC racer, an off-road crawler, or anything in between, this servo horn delivers the precision and reliability that defines Futaba's reputation in the radio control industry.

What's in the Box

• Futaba Alloy Twin Arm 40mm (1.6") in Blue

Frequently Asked Questions

• What is an RC servo horn and why would I need the Futaba Alloy Twin Arm? — A servo horn (also called a servo arm) is the mechanical linkage that connects your RC servo motor to the parts you want to control, such as steering mechanisms, throttle linkages or other actuated components. The Futaba Alloy Twin Arm is essential if you're building or upgrading an RC car, buggy, truck, crawler or any other radio control vehicle that requires precise servo-driven control. This particular model offers a compact 40mm length perfect for space-constrained installations, whilst the aluminium construction ensures reliability and durability through countless hours of RC hobby use.
• Is this suitable for beginners to RC hobbies? — Yes, absolutely. Whilst this is a precision component typically used by experienced RC builders, beginners who are assembling their first custom RC setup will find it essential. The straightforward design, clearly stated specifications, and universal compatibility with Futaba servo systems make it accessible to anyone learning the fundamentals of RC vehicle building. Beginners will appreciate that Futaba components are well-documented, with plenty of online resources and local RC expertise available throughout the UK to support their learning.
• What makes aluminium better than plastic servo horns? — Aluminium offers several advantages over plastic alternatives: it's significantly stronger and more rigid, meaning your RC steering and control inputs remain precise even under the mechanical stresses of aggressive driving or racing. Aluminium won't flex or deform like plastic can, ensuring your RC handling characteristics remain consistent. Additionally, aluminium dissipates heat better than plastic, helping protect your servo mechanism from thermal stress during extended RC sessions. The durability of aluminium means you're making a long-term investment in your RC setup rather than replacing worn plastic horns regularly.
• What RC vehicles can I use this servo horn with? — The Futaba Alloy Twin Arm 40mm is compatible with any RC vehicle that uses standard Futaba servo splines and requires a compact servo linkage. This includes RC buggies, RC cars, RC trucks, RC crawlers, RC truggies, and many other radio control models. The 40mm length makes it particularly suitable for modern, space-efficient RC designs where larger servo horns would interfere with other components. If you're unsure about compatibility with your specific RC model, RC Model Shop's expert team can advise you further.
• Can I use this with non-Futaba servos? — The Futaba Alloy Twin Arm is specifically designed with Futaba servo splines, so it will mount securely onto Futaba servo shafts. If your RC setup uses servos from other manufacturers, you'll need to verify that they use compatible spline patterns. Many modern RC servos do use standard spline formats, but it's always best to check compatibility before purchasing to ensure perfect fit with your existing RC equipment.
• How durable is the blue finish? — The blue finish is applied using durable coating methods designed to withstand regular RC use, including repeated assembly and disassembly during maintenance and adjustment. Whilst the finish will eventually show signs of wear with extended use, it's specifically engineered to resist chipping, fading, and corrosion far better than basic painted alternatives. For RC builders who regularly maintain their vehicles, this professional-grade finish will remain visually appealing and functionally protective for years.

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 Futaba Alloy Twin Arm 40mm (1.6"), Blue FUTEBS3434 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.