Overview
The ARRMA Ball 3x7.8x8mm (4) Z-AR310450 is an essential spare part for RC enthusiasts across the UK who demand reliability and durability from their high-performance vehicles. Whether you're a serious competitor, a weekend basher, or someone who enjoys pushing their RC car UK models to the limit, these steel balls are a critical component that keeps your drivetrain operating smoothly. These precision-engineered balls are specifically designed to work seamlessly with some of ARRMA's most popular and powerful brushless RC vehicles, making them an indispensable addition to your RC tool box.
ARRMA has built a reputation for manufacturing some of the most robust and capable ready to run RC vehicles on the market today. Their brushless RC models are engineered to handle extreme conditions, punishing terrain, and high-speed racing. To maintain this level of performance, every single component—including these drivetrain balls—must meet exacting standards for durability, consistency and reliability. The ARRMA Ball 3x7.8x8mm pack ensures that your RC car continues to operate at peak efficiency, delivering smooth, predictable handling and power delivery across all driving conditions.
These balls serve a critical function within the drivetrain of your RC model, and having spare sets on hand means you can keep racing or bashing without interruption. A single pack contains four balls, giving you a complete replacement set or enough to upgrade multiple vehicles. Whether you're maintaining your RC buggy, truck or speed monster, these balls represent genuine ARRMA engineering and quality that you can trust.
Key Features
- Super-tough steel material — Manufactured from high-quality steel that provides exceptional durability and long-lasting performance, these balls are engineered to withstand the intense forces and stresses placed on them during aggressive driving, high-speed runs and competitive racing, ensuring they maintain consistent operation in all conditions without premature wear.
- Precision engineering — Each ball is manufactured to exact specifications of 3x7.8x8mm, ensuring perfect fit and compatibility with ARRMA's drivetrain systems and delivering the precise tolerances needed for smooth, reliable power transmission throughout your RC model's mechanical systems.
- Genuine ARRMA specification — These are original factory parts designed specifically for ARRMA vehicles, meaning you can be confident that they will integrate perfectly with your RC model's drivetrain without any compatibility issues or performance compromises.
- Pack of four units — The set includes four balls per pack, providing you with either a complete replacement set for your vehicle or spare balls to keep in your RC tool box for field maintenance and repairs during events or leisure driving sessions.
- Compatible with multiple ARRMA models — These balls work across a wide range of ARRMA's premium brushless RC vehicles, from the powerful 6S BLX models through to the extreme performance machines, making them a versatile spare part that adds value to your RC collection.
Technical Performance
The ARRMA Ball 3x7.8x8mm represents precision engineering at its finest, manufactured from super-tough steel that delivers exceptional durability and consistent operation across all driving conditions. These are genuine drivetrain spares that play a critical role in the smooth functioning of your RC model's mechanical systems. The balls measure exactly 3x7.8x8mm, precise specifications that ensure flawless integration with ARRMA's engineered drivetrain components. Whether you operate your RC car UK model in wet conditions, dusty environments, or on abrasive track surfaces, these steel balls maintain their integrity and performance characteristics, delivering the reliable power transmission that ARRMA's brushless motors and high-performance drivetrains demand. The tough steel construction resists deformation and wear, meaning your RC buggy, truck or speed machine continues to deliver smooth, predictable handling and acceleration lap after lap, race after race, or bash session after bash session.
What's in the Box
- 4 x Steel Balls - 3x7.8x8mm
Frequently Asked Questions
- What ARRMA RC models are these balls compatible with? — The ARRMA Ball 3x7.8x8mm Z-AR310450 is compatible with a comprehensive range of ARRMA's most popular brushless RC vehicles, including the Arrma Felony 6S BLX in both Black and Orange variants, the Arrma Infraction 6S BLX available in Blue and Silver, the Arrma 1/8 KRATON 6S EXB 4X4 RTR Speed Monster Truck in Black, the Arrma MOJAVE 6S V2 BLX in Green/Black and Red/Black colour options, the Arrma 1/7 TALION 6S EXB 4X4 RTR Speed Truck in Black, the Arrma Typhon 6S V5 BLX, and the Arrma 1/8 TLR Tuned TYPHON 6S 4WD BLX Buggy RTR in Red/Blue. This compatibility list covers many of ARRMA's most capable and popular models across multiple vehicle types and scales.
- Why would I need replacement drivetrain balls for my RC model? — The balls within your RC car's drivetrain experience constant stress and friction during operation, whether you're running fast-paced competitive races or aggressive bashing sessions. Over extended use, these components can wear, become damaged, or develop flat spots that compromise smooth power delivery and handling consistency. Having spare balls ensures you can quickly restore your RC vehicle to peak performance without long downtime, making them an essential item to keep in your RC tool box alongside other maintenance spares.
- Are these genuine ARRMA parts? — Yes, the ARRMA Ball 3x7.8x8mm Z-AR310450 is an official ARRMA spare part manufactured to the brand's exacting quality standards. This means they are engineered to work perfectly with ARRMA's drivetrain systems and deliver the same durability and performance consistency that ARRMA's ready to run RC vehicles are known for across the UK and worldwide.
- How many balls do I get in this pack? — Each pack contains four steel balls measuring 3x7.8x8mm, providing you with either a complete replacement set for your vehicle or extra spares to maintain in your RC kit for quick field repairs and ongoing maintenance.
- What makes these balls special compared to standard alternatives? — ARRMA's balls are manufactured from super-tough steel specifically engineered for the demands of high-performance brushless RC vehicles. This premium material ensures long-lasting durability, consistent operation across varying conditions, and reliable power transmission that matches the performance characteristics of ARRMA's powerful motors and drivetrains.
- Can I use these balls as preventative maintenance? — Absolutely. Many experienced RC enthusiasts proactively replace drivetrain balls as part of routine maintenance to ensure their ready to run RC vehicles continue operating at peak efficiency. Having spare ARRMA balls on hand means you can perform maintenance during regular service intervals without waiting for replacement parts to arrive.
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 ARRMA Ball 3x7.8x8mm (4) Z-AR310450 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.
