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Traxxas UDR Trailing Arms Suspension Spares Pair Assembled Hollow Balls TRX8544

Model No: TRX8544


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Overview

The Traxxas Trailing Arms (2 pcs) assembled with hollow balls, model TRX8544, are genuine OEM suspension components engineered for the Traxxas UDR Unlimited Desert Racer series. These replacement trailing arms are essential spare parts for anyone running a Traxxas UDR short course truck in the UK RC hobby community. Whether you're a competitive racer pushing your vehicle to the limit or an enthusiast who enjoys weekend bashing sessions, having quality replacement suspension components on hand ensures your RC car UK setup remains in peak condition.

Trailing arms are critical components of any RC vehicle's suspension geometry, directly affecting how your short course truck handles over rough terrain, jumps and high-speed corners. The Traxxas UDR platform is renowned for its pro-scale design and desert racing heritage, and these replacement arms maintain that level of performance and durability. Coming pre-assembled with hollow ball connectors, these arms are ready to install, saving you time on build or repair work and ensuring proper assembly from the factory.

For RC enthusiasts in the UK looking for authentic Traxxas spare parts, these trailing arms represent an investment in reliability and proven performance. The UDR Unlimited Desert Racer has established itself as one of the most capable short course trucks in the RC market, and maintaining it with genuine Traxxas components ensures you're preserving that capability for years to come.

Key Features

  • Factory Assembled Design — These trailing arms arrive completely assembled with hollow ball connectors already installed, eliminating the need for additional assembly time and ensuring proper factory-spec installation that matches the engineering tolerances of your Traxxas UDR.
  • Hollow Ball Connectors — The hollow ball design provides smooth articulation whilst maintaining lightweight construction, which is essential for maintaining the sprung suspension geometry and achieving the precise handling characteristics that the UDR platform is known for.
  • Genuine Traxxas OEM Component — As an official Traxxas part, this suspension component meets all original equipment manufacturer specifications and integrates perfectly with other UDR components, giving you confidence that you're using parts engineered specifically for your vehicle.
  • Direct Compatibility — Designed to fit the Traxxas UDR Unlimited Desert Racer Pro-Scale 4WD RTR short course truck variants, including models equipped with Fox Racing and Rigid Industries suspension packages, ensuring a perfect fit without modification.
  • Suspension Performance — Quality trailing arms are fundamental to maintaining the suspension geometry of your RC short course truck, directly influencing cornering stability, weight transfer characteristics and overall handling balance across various terrain conditions.
  • Durable Construction — Built to Traxxas' exacting standards, these arms withstand the demands of high-speed runs, jumps and aggressive driving typical of short course truck racing in the UK RC hobby scene.
  • Pair Included — The pack includes two trailing arms, providing a complete rear suspension solution so you have matching left and right components for symmetrical handling characteristics.

Technical Performance

The Traxxas Trailing Arms TRX8544 are precision-engineered suspension components manufactured to OEM specifications for the UDR Unlimited Desert Racer short course truck platform. Trailing arms form a critical part of the suspension linkage system, controlling the vertical movement of the rear wheels whilst maintaining proper geometry through compression and extension cycles. The pre-assembled configuration with hollow ball connectors eliminates variables in construction and ensures consistent performance out of the box. These components are engineered for high-speed desert racing applications where suspension geometry precision is paramount — the UDR platform is designed for pro-scale realism and genuine off-road performance capability. The hollow ball design reduces unsprung mass compared to solid alternatives whilst maintaining the rigidity needed for accurate suspension geometry. Whether you're running your UDR on track, in grass terrain, or over rough outdoor ground, these trailing arms provide the foundation for predictable handling characteristics. The quality of suspension components directly affects how your RC car UK responds to throttle input, braking and cornering forces, making proper maintenance and replacement of worn parts essential for maintaining peak performance. Traxxas suspension spares are recognised throughout the UK RC community as reliable, proven components backed by years of development and real-world racing feedback.

What's in the Box

  • Traxxas Trailing Arms (2 pcs) assembled with hollow balls

Frequently Asked Questions

  • What is the purpose of trailing arms in RC suspension? — Trailing arms are suspension links that control the vertical motion of the wheels whilst maintaining the vehicle's geometry throughout suspension travel. They directly affect how your RC short course truck handles cornering, braking and acceleration, making them critical to overall performance and control characteristics.
  • Are these trailing arms pre-assembled? — Yes, these Traxxas trailing arms come fully assembled with hollow ball connectors already installed, allowing you to install them directly onto your UDR without additional assembly work, saving time and ensuring factory-spec construction.
  • Which Traxxas models are these compatible with? — These trailing arms (TRX8544) are designed specifically for the Traxxas UDR Unlimited Desert Racer Pro-Scale 4WD RTR short course truck, including models with Fox Racing suspension packages (TRX85086-4-FOX1) and Rigid Industries suspension packages (TRX85086-4-RGD1).
  • Why should I choose genuine Traxxas suspension spares? — Genuine Traxxas components are engineered to exact specifications that match your vehicle's design tolerances, ensuring perfect fitment and performance characteristics that third-party alternatives may not replicate. Using OEM spares preserves your vehicle's handling balance and suspension geometry.
  • How often should trailing arms be replaced? — The frequency depends on your driving intensity and terrain. Regular bashers and racers should inspect suspension components regularly for wear, damage or bent arms that would affect handling geometry. Heavy use, crashes and aggressive jumps accelerate wear, making replacement necessary when geometry becomes compromised.
  • Do I need any tools to install these trailing arms? — Standard RC hobby tools such as ball end hex wrenches, pliers for retaining clips, and possibly a suspension tool set may be required for installation, depending on your vehicle configuration. Refer to your UDR manual for specific installation procedures.
  • Can I upgrade to aftermarket trailing arms? — Yes, alternative manufacturers produce upgraded trailing arms for the UDR platform, typically offering materials like aluminium or carbon fibre construction that some enthusiasts prefer. However, genuine Traxxas arms provide proven reliability and perfect OEM compatibility.

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 Traxxas Trailing arms (2 pcs) (assembled with hollow balls) TRX8544 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.

  • Manufacturer: Traxxas
  • Part Number: TRX8544
  • EAN: 0020334854407
  • Spare Part Type: Suspension Spares
  • Product Type: Trailing Arms
  • Quantity: 2 pieces
  • Configuration: Assembled with hollow balls
  • Compatible With: TRX85086-4-FOX1 Traxxas UDR Unlimited Desert Racer Pro-Scale 4WD RTR Short Course Truck with Fox Racing suspension
  • Compatible With: TRX85086-4-RGD1 Traxxas UDR Unlimited Desert Racer Pro-Scale 4WD RTR Short Course Truck with Rigid Industries suspension
  • Ball Connectors: Hollow ball design

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.
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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.