- Product Type: Suspension Pivot Ball
- Manufacturer: ARRMA
- Model Number: ARA330629
- Thread Size: M4
- Overall Dimensions: 11 x 19.5mm
- Hex Socket Size: 11mm
- Pivot Ball Diameter: 11mm
- Material: Steel
- Quantity in Package: 2
- Compatible Vehicles: ARRMA 1/5 Kraton 8S 4X4 RTR, ARRMA 1/5 Kraton 8S EXB 4X4 Roller, ARRMA 1/5 Kraton 8S EXB AVC 4X4 RTR, ARRMA 1/5 Outcast 8S AVC 4X4 RTR, ARRMA 1/5 Outcast 8S EXB 4X4 Roller, ARRMA 1/5 Outcast 8S EXB AVC 4X4 RTR
- Customer Rating: 4.4 out of 5
Overview
The ARRMA Pivot Ball M4x11x19.5mm (2) is an essential suspension spare part designed for serious RC enthusiasts who demand reliability and precision in their vehicles. Whether you're running an ARRMA Kraton or Outcast 8S brushless monster truck or stunt truck, these pivot balls are critical components that connect your suspension linkages and allow smooth, controlled articulation during high-speed runs and aggressive bashing. If you're looking for quality RC car spare parts in the UK, this genuine ARRMA component is exactly what you need to keep your vehicle performing at its best.
Pivot balls are fundamental to the suspension geometry of any high-performance RC vehicle, enabling the connection between control arms and chassis components whilst allowing for precise angular movement. When you're pushing your RC model to its limits on tough terrain or enjoying weekend bashing sessions, pivot balls experience significant stress and wear. Having genuine replacement pivot balls on hand is the mark of a responsible RC hobbyist who understands that proper maintenance extends vehicle lifespan and maintains handling characteristics. This two-pack gives you a ready supply of spares, so you can keep your vehicle in peak condition without downtime.
ARRMA is renowned throughout the RC community for manufacturing durable, high-quality components that withstand the demands of both competitive racing and casual recreational use. These pivot balls are precision engineered to exacting tolerances, ensuring they fit perfectly into your suspension system and deliver the smooth operation your vehicle deserves. The customer rating of 4.4 out of 5 demonstrates that RC enthusiasts across the UK trust these components to deliver consistent performance and longevity.
Key Features
- Precision Manufactured Steel Construction — Each pivot ball is manufactured from strong steel using precision engineering techniques, ensuring maximum crash resistance and long-lasting durability even under extreme driving conditions and repeated impacts that are common in RC bashing and competition.
- 11mm Hex Socket Fit — The integrated 11mm hex socket design enables fast and easy installation and removal without the need for specialised tools, making maintenance quick and straightforward so you can spend more time driving and less time working on your vehicle.
- 11mm Diameter Pivot Ball — The precisely dimensioned 11mm diameter pivot ball provides the exact geometry needed for smooth suspension articulation, ensuring your ARRMA vehicle maintains proper handling characteristics and predictable steering response during aggressive driving.
- M4 Threaded Hole — The M4 threaded connection point allows secure fastening to your vehicle's suspension linkages, providing a robust mechanical joint that resists loosening even during high-impact collisions and rough terrain driving.
- Two-Pack Supply — This package includes two pivot balls, giving you an immediate spare set and ensuring you're never without this critical component, whether you're preparing for a day at the track or maintaining your vehicle between bashings.
- Genuine ARRMA Parts — As official ARRMA suspension components, these pivot balls are engineered to exact OEM specifications and are guaranteed compatible with your vehicle, providing the perfect fit and performance that genuine parts deliver.
Technical Performance
The ARRMA Pivot Ball represents the engineering excellence that defines ARRMA's approach to RC vehicle components. Manufactured from premium steel using precision machining techniques, these pivot balls are designed to withstand the extreme forces that develop during aggressive RC driving. The M4x11x19.5mm specification provides the exact dimensions needed for seamless integration with ARRMA suspension systems, whilst the 11mm hex socket facilitates quick installation and maintenance. The engineering of these components focuses on delivering consistent performance across countless suspension cycles, whether you're running on carpet, dirt, concrete or sand. The steel construction resists corrosion and maintains its dimensional stability over time, ensuring your suspension geometry remains consistent and your vehicle handles predictably. For RC enthusiasts running high-powered brushless systems like the 8S LiPo-powered ARRMA Kraton and Outcast models, reliable suspension components are absolutely essential because the extreme power output places significant stresses on every mechanical joint. These pivot balls are engineered to handle that punishment whilst maintaining the smooth articulation that defines quality handling.
What's in the Box
- 2 x Pivot Ball M4 x 11 x 19.5mm
Frequently Asked Questions
- Which ARRMA vehicles are these pivot balls compatible with? — These M4x11x19.5mm pivot balls are designed as standard parts for the ARRMA 1/5 Kraton 8S 4X4 RTR in green, the Kraton 8S EXB roller models, the Kraton 8S EXB AVC RTR, the Outcast 8S AVC RTR in red, and the Outcast 8S EXB AVC RTR. They may also fit other ARRMA models with identical suspension geometry, but we recommend verifying compatibility with your specific vehicle before ordering.
- How often should I replace my RC pivot balls? — Pivot ball replacement frequency depends on your driving intensity and terrain. Casual weekend bashers might replace them every 12-24 months, whilst competitive racers or those driving in abrasive conditions may need replacements every few months. Inspect them regularly for wear, cracks or looseness, and replace immediately if you notice any damage or play in the suspension.
- Are these genuine ARRMA parts? — Yes, these are official ARRMA suspension components manufactured to exact OEM specifications. Genuine parts ensure perfect fit and performance, and they're warranted by ARRMA's quality standards. When you buy from an authorised retailer like RC Model Shop, you can be confident you're receiving authentic ARRMA components, not counterfeit imitations.
- Do I need any special tools to install these pivot balls? — The 11mm hex socket design means you only need a standard 11mm hex wrench or driver bit to install and remove these pivot balls. This makes them extremely convenient for quick maintenance and repairs at the track or in your workshop.
- Why should I buy a spare pack of pivot balls? — Pivot balls are wear items that get stressed every time you drive, especially during crashes, landings from jumps and aggressive cornering. By keeping a two-pack on hand, you ensure you're never stranded without this essential suspension component. It's the responsible approach to RC maintenance and keeps your vehicle ready to run whenever you want to drive.
- What makes ARRMA pivot balls better than aftermarket alternatives? — ARRMA's precision engineering ensures these components are manufactured to exact OEM tolerances, guaranteeing perfect fit and performance in your suspension system. The steel construction is optimised for the specific stresses your vehicle experiences, and they're backed by ARRMA's reputation for quality and durability that countless RC enthusiasts trust throughout the UK and worldwide.
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 Pivot Ball, M4x11x19.5mm (2) 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.
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.
