Key Features
- Note:**Does not fit stock/OEM DBXL S901 servos.**
- Use with aftermarket large scale 15T spline servos from Spektrum or Hitec
- Perfect fit every time — CNC Machined for consistent and accurate tolerances
- High Strength — Made with 7075 T6 Aluminum
- Secure connection — Clamping style
- Great looks — Black anodized aluminum
- Fits 15T spline servos (Spektum, Hitec etc.). **Does not fit stock/OEM DBXL S901 servos.**
Overview
The Dynamite large scale servo arms are machined from high quality 7075 T6 aluminum material to withstand the high demand of giant scale RC surface applications. This aluminum servo arm is designed to be used in-conjunction with upgraded servos in your Desert Buggy XL.
Please NOTE: This does not fit the stock SPMS901 S901 30KG DB XL Servo.
Can use SPMSS9020 (S9020 1/5 Scale Digital HV Surface Steering Servo).
Overview
The Dynamite Aluminium Steering SX Arm (15T Spline) is a premium replacement servo arm designed specifically for large-scale RC applications, including the Losi 5IVE-T, WRC, and Desert Buggy XL platforms. This is an essential upgrade component for anyone running these vehicles with aftermarket servo solutions, offering superior durability and precision compared to stock alternatives. Whether you're a competitive racer pushing your RC buggy to its limits or a weekend basher who demands reliability, this machined aluminium servo arm delivers the performance and quality that serious RC enthusiasts expect from their equipment.
Built by Dynamite, a recognised brand in the large-scale RC market, this steering arm is engineered to provide consistent, accurate performance in demanding conditions. The 15T spline configuration ensures compatibility with a wide range of high-performance aftermarket servos from brands like Spektrum and Hitec, giving you flexibility in your servo selection without compromising on quality or fit. For UK RC car enthusiasts looking to upgrade their Losi 5IVE-T or similar large-scale vehicles, this component represents a significant improvement over standard plastic arms, offering enhanced strength and longevity under the stresses of competitive racing or aggressive bashing.
This replacement arm is ideal for drivers who have experienced wear, damage, or simply want to upgrade to a more robust solution. The precision machining ensures that every arm meets exact tolerances, meaning you'll get a perfect fit every time you install it. With its black anodised finish, this servo arm not only performs exceptionally well but also looks the part on your large-scale RC vehicle.
Key Features
- CNC Machined Design — This servo arm is precision-machined to exacting tolerances, ensuring consistent accuracy and a perfect fit every time you install it into your RC buggy or truck. This level of precision eliminates the wobbling or poor fitment that can occur with lower-quality plastic arms, translating directly to better steering response and handling on the track or bash spot.
- 7075 T6 Aluminium Construction — Made from aerospace-grade 7075 T6 aluminium, this arm is engineered to withstand the high demands of large-scale RC surface applications. This material is significantly stronger than standard aluminium alloys and plastic alternatives, providing superior resistance to bending, cracking, and fatigue during intense racing or bashing sessions.
- Clamping Style Connection — The secure clamping mechanism ensures the servo arm remains firmly attached to your servo without slipping or rotating under load. This design provides reliable servo control for precise steering inputs, which is critical for competitive racing where even small steering errors can cost you a race.
- Black Anodised Finish — Beyond its aesthetic appeal, the black anodised coating provides protection against corrosion and UV damage, extending the lifespan of your servo arm in outdoor racing conditions. This professional finish also gives your RC vehicle a polished, high-end appearance that matches the quality of modern large-scale RC platforms.
- 15T Spline Configuration — This servo arm features a 15T spline interface, making it compatible with a wide range of aftermarket large-scale servos from manufacturers such as Spektrum and Hitec. This versatility allows you to select the servo that best suits your driving style and vehicle setup without worrying about arm compatibility.
- Upgraded Servo Option — Compatible with high-performance servos like the Spektrum S9020 1/5 Scale Digital HV Surface Steering Servo, enabling you to maximise your vehicle's potential with modern servo technology.
Technical Performance
This steering servo arm is engineered from high-quality 7075 T6 aluminium material, a specification that places it in the premium category of RC servo arms. The material choice is critical for large-scale RC applications where steering loads are substantially greater than in smaller-scale vehicles. The machined construction provides exceptional rigidity without excessive weight, ensuring that your steering inputs translate directly to wheel movement without deflection. The 15T spline interface accommodates modern aftermarket servos designed for large-scale RC buggies and trucks, offering significantly more torque and control than stock OEM servos. The clamping design creates a secure, slip-free connection that maintains alignment under high-load conditions. The black anodised finish not only looks professional but also provides a hard protective layer that resists wear, corrosion, and the elements typically encountered during RC racing and bashing. For users of the Losi 5IVE-T, WRC, or Desert Buggy XL, this arm represents a substantial upgrade in steering precision, durability, and overall vehicle control. The arm is compatible with aftermarket large-scale 15T spline servos from Spektrum, Hitec, and similar manufacturers, though it is important to note that this arm does not fit stock or OEM DBXL S901 servos, so servo selection is an important consideration when upgrading.
What's in the Box
- 1x Dynamite Aluminium Steering SX Arm (15T Spline)
What You Need to Complete
- 15T Spline Servo (Spektrum, Hitec or compatible aftermarket servo — does not fit stock DBXL S901 servos)
- Compatible RC vehicle such as Losi 5IVE-T, Losi WRC, or Desert Buggy XL
- Basic RC tools for installation
Frequently Asked Questions
- Does this steering arm fit the Losi 5IVE-T and Desert Buggy XL? — Yes, the Dynamite Aluminium Steering SX Arm is specifically designed to fit the Losi 5IVE-T, Losi WRC, and Desert Buggy XL platforms. However, you must verify that your servo has a 15T spline interface, as this arm is not compatible with the stock OEM DBXL S901 servos. Aftermarket servos from Spektrum and Hitec are suitable choices.
- What servo should I use with this arm? — This arm is compatible with aftermarket large-scale 15T spline servos from brands such as Spektrum, Hitec, and similar manufacturers. It is explicitly not compatible with the stock Spektrum SPMS901 S901 30KG DB XL servo. The Spektrum S9020 1/5 Scale Digital HV Surface Steering Servo is a recommended upgrade option that will work perfectly with this arm.
- Why is this arm better than the stock plastic arm? — The Dynamite Aluminium Steering SX Arm offers several advantages over stock plastic arms: it is precision CNC machined from aerospace-grade 7075 T6 aluminium for superior strength and rigidity, provides a perfect fit with consistent tolerances, resists bending and cracking under high-load steering inputs, and features a professional black anodised finish that resists corrosion and wear. For competitive racing or aggressive bashing, these advantages translate to better steering control, longer component lifespan, and reduced maintenance needs.
- Is this suitable for beginners or experienced drivers? — This is a replacement component intended for users upgrading from stock setups or replacing damaged arms, so it works best with drivers who already have a large-scale RC vehicle such as a Losi 5IVE-T and are looking to improve performance and durability. It is not a standalone product but rather an upgrade for existing RC platforms. Beginners purchasing a new RC vehicle for the first time may want to start with the stock setup, but experienced drivers will immediately recognise the value of this precision-machined upgrade.
- What makes CNC machining important for a servo arm? — CNC (Computer Numerical Control) machining ensures that every servo arm is produced to exact specifications with tight tolerances. This precision means the arm will fit perfectly onto your servo every time, providing consistent steering response and preventing the flex or misalignment that can occur with lower-quality components. For competitive RC racing, this level of consistency is crucial for achieving predictable handling characteristics.
- Can I use this arm with any 15T spline servo? — Most aftermarket 15T spline servos from reputable manufacturers like Spektrum and Hitec will work with this arm. However, servo dimensions and mounting interfaces can vary, so it is always recommended to check compatibility with your specific servo model before purchasing. The arm is confirmed incompatible with the stock DBXL S901 servo, so avoid that option.
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 DYN Alum Steer Sx Arm 15T Spline: Losi 5ive T,WRC,DBXL P-DYNR0111 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.
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