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ARRMA EXB Servo Saver Axle CNC Aluminium Pair 1/5 Scale Red ARA340172

Model No: ARA340172


COMING SOON 17/06/2026

Coming Soon - Stock Arriving: 17/06/2026

Stock Arriving: 17/06/2026

£10.99

£1.10

£9.89

Inc VAT

1 Year Warranty
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  • Product Type: Servo Saver Axle (pair)
  • Manufacturer: ARRMA
  • Manufacturer Part Number: ARA340172
  • Retailer Part Number: Z-ARA340172
  • EAN Code: 5052127036825
  • Specification: ARRMA EXtreme Bash (EXB)
  • Material: CNC Machined High-Quality Aluminium
  • Finish: Anodised ARRMA Red
  • Quantity Included: 2 x Servo Saver Axle
  • Installation Type: Direct Replacement for Molded Composite Parts
  • Compatible Vehicle Scale: 1/5
  • Compatible Models: ARRMA Kraton 8S 4X4 RTR, ARRMA Kraton 8S EXB 4X4 Roller, ARRMA Kraton 8S EXB AVC 4X4 RTR, ARRMA Outcast 8S AVC 4X4 RTR, ARRMA Outcast 8S EXB 4X4 Roller, ARRMA Outcast 8S EXB AVC 4X4 RTR
  • Battery Compatibility: 8S LiPo

Overview

The ARRMA Servo Saver Axle, CNC Aluminum (2) Z-ARA340172 represents a significant upgrade for owners of high-performance ARRMA RC vehicles. These precision-engineered axles are designed as direct replacements for the standard molded composite parts found on many ARRMA 1/5 scale brushless RC trucks, including the popular Kraton 8S and Outcast 8S models. If you're running a serious brushless speed truck or stunt truck and want to enhance durability, precision and visual appeal, these CNC-machined aluminium axles deliver all three in one package.

Built to ARRMA's EXtreme Bash (EXB) specification, these servo saver axles are engineered to withstand the most demanding action and abuse that RC bashers and racers can throw at them. Whether you're a dedicated UK RC enthusiast pushing your vehicle to its limits on rough terrain, or someone looking to future-proof your investment with stronger components, these aluminium axles offer genuine value. They represent the kind of upgrade that separates weekend bashers from serious competitors, transforming your RC car UK experience with parts that are built to last.

The combination of CNC machining precision, high-quality aluminium construction, and ARRMA's distinctive red anodised finish makes these axles both functionally superior and visually striking. Rather than settling for composite components that can wear or break under stress, these ready-to-install axles give you the peace of mind that comes with professional-grade engineering and materials.

Key Features

  • CNC Machined Aluminium Construction — Each axle is precision-machined from high-quality aluminium, ensuring consistent tolerances and superior strength compared to injection-moulded composite parts. This manufacturing process eliminates weak points and inconsistencies, delivering components that maintain their integrity even under extreme driving conditions and repeated high-impact forces.
  • ARRMA EXtreme Bash (EXB) Specification — These parts are specifically engineered and tested to ARRMA's demanding EXB standard, which means they are made from extremely strong and durable materials designed to survive the most gruelling action. This isn't a generic upgrade; it's a purpose-built component designed for vehicles that demand maximum durability.
  • Anodised ARRMA Red Finish — The distinctive red anodised coating provides both aesthetic appeal and functional corrosion resistance. Your RC truck will look more professional and race-ready, whilst the protective coating ensures the aluminium stays in pristine condition through countless hours of bashing and racing.
  • Direct Drop-In Replacement — Designed as a direct replacement for the molded composite servo saver axles, installation is straightforward. No modifications, custom fabrication, or additional parts are required; simply remove the old component and install the new one.
  • Pair of Two Units — This package includes two servo saver axles, providing both left and right coverage for complete steering geometry upgrade on your ARRMA vehicle.
  • Enhanced Precision and Strength — The combination of CNC machining and premium aluminium adds precision to your steering geometry whilst providing substantially greater strength during aggressive turning, impacts, and high-speed manoeuvres typical of brushless RC truck operation.

Technical Performance

The ARRMA Servo Saver Axle, CNC Aluminum delivers a significant performance upgrade over standard composite alternatives. These components are precision-machined from high-quality aluminium, a material choice that immediately provides benefits in terms of strength-to-weight ratio and durability. The CNC machining process ensures that each axle meets exacting tolerances, eliminating the slight variations that can occur in injection-moulded components and affecting steering precision. The anodised finish doesn't just provide the striking ARRMA red colour; it also offers genuine corrosion resistance, protecting the underlying aluminium from oxidation and wear caused by exposure to moisture, dirt, and the various conditions encountered in outdoor RC car UK driving. These components have been engineered to the ARRMA EXtreme Bash (EXB) specification, which represents a higher tier of component durability within the ARRMA product range. The engineering behind these axles reflects the demands placed on servo saver components in high-performance 1/5 scale brushless RC trucks, where steering loads can be extreme and reliability is non-negotiable. Whether you're running a 1/5 Kraton 8S 4X4 RTR brushless speed truck or a 1/5 Outcast 8S AVC 4X4 RTR brushless stunt truck, these axles provide the strength and precision needed to handle the forces generated by 8S LiPo battery systems.

What's in the Box

  • 2 x EXB Servo Saver Axle, CNC Aluminum

Frequently Asked Questions

  • What ARRMA vehicles are these servo saver axles compatible with? — These CNC aluminum servo saver axles are designed to fit ARRMA 1/5 scale brushless RC trucks, including the Kraton 8S 4X4 (standard and EXB versions), Kraton 8S EXB AVC, Outcast 8S AVC, Outcast 8S EXB, and Outcast 8S EXB AVC models. They function as direct replacements for the standard molded composite servo saver axles, so compatibility is assured if you own any of these high-performance brushless vehicles.
  • Why should I upgrade from composite to aluminium servo saver axles? — Composite servo saver axles, whilst adequate for casual driving, can wear, flex, or break under the extreme forces generated by 8S brushless RC trucks. Aluminium axles offer greater stiffness, which improves steering precision and response, whilst their superior material strength means they withstand impacts and aggressive manoeuvring without developing stress cracks or permanent deformation. The CNC-machined precision also eliminates manufacturing variations that can affect handling consistency.
  • Are these difficult to install on my ARRMA RC truck? — No. These servo saver axles are designed as direct replacements for the stock molded composite parts, so installation is straightforward and requires no modifications to your vehicle. If you're comfortable performing basic RC maintenance, you'll have no trouble swapping these in. The package includes two axles, providing complete coverage for your steering system.
  • What is ARRMA EXB specification and why does it matter? — EXB (EXtreme Bash) is ARRMA's engineering specification for components designed to survive the most demanding bashing and racing conditions. EXB parts are manufactured from extremely strong and durable materials and undergo rigorous testing to ensure reliability under extreme use. Choosing EXB-specification components means you're buying parts specifically engineered for high-performance, high-abuse driving rather than generic upgrades.
  • Will these aluminium axles improve my RC truck's performance? — Yes, in several ways. The increased stiffness of aluminium compared to composite improves steering precision and response feel. The superior strength means you can drive more aggressively without worrying about component failure, allowing you to push your vehicle to its limits. The CNC-machined tolerances also ensure consistent handling characteristics across multiple driving sessions.
  • What is the anodised finish and does it affect performance? — The anodised ARRMA red finish is a protective coating applied to the aluminium surface. It serves two purposes: aesthetic (giving your truck a professional appearance) and functional (protecting the underlying aluminium from corrosion caused by moisture, dirt, and UV exposure). This coating doesn't affect performance but extends the lifespan of the components.

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 Servo Saver Axle, CNC Aluminum (2) Z-ARA340172 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.
  • As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
  • 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.