RPM Rear A-arms for ARRMA Kraton Talion Outcast 1/10 Scale RPM81402

Overview

The RPM Rear A-arms for the ARRMA Kraton, Talion and Outcast (RPM81402) represent a significant upgrade over factory suspension components for serious RC enthusiasts across the UK. Whether you're bashing at high speeds, competing in organised events, or exploring challenging terrain with your RC monster truck or buggy, these engineering-grade rear A-arms deliver the performance, durability and precision that experienced RC drivers demand. These suspension components are specifically engineered to enhance your vehicle's handling characteristics whilst maintaining the legendary strength RPM is known for throughout the RC hobby community.

As a dedicated upgrade for 1/10 scale ARRMA models and the Durango DEX8T, the RPM81402 rear A-arms are crafted from an incredibly strong nylon engineering blend that withstands the most demanding driving conditions. Whether you're tackling muddy terrain, rocky trails, or high-speed circuits, these components provide the durability and consistent performance that separates premium aftermarket suspension from basic factory alternatives. The precision engineering incorporated into these A-arms translates directly into better suspension response, more predictable handling, and ultimately a more enjoyable RC experience.

If you're looking to maximise the potential of your ARRMA Kraton, Talion, Outcast or Durango DEX8T RC car in the UK, these rear A-arms should be a priority upgrade in your suspension tuning programme. They're the choice of RC enthusiasts who refuse to compromise on quality and understand that suspension geometry is fundamental to vehicle performance.

Key Features

• Slop Elimination Technology — These A-arms significantly reduce movement at the hinge pins compared to stock components, which means less play in your suspension system and more accurate, consistent suspension settings that remain stable lap after lap or run after run.
• Dual Shock Mount Holes — The innovative addition of a second shock mount hole positioned further out on the arm enables a lower profile suspension setup, allowing your shocks to lay down at more aggressive angles and lower your vehicle's ride height for improved centre of gravity and better cornering performance.
• Weight Reduction — At approximately 48 grams each (roughly 10 percent lighter than the factory ARRMA specification of 53 grams), these A-arms reduce unsprung weight which improves suspension response, allows your shocks to react more quickly to terrain changes, and enhances overall vehicle agility.
• Chamfered Edge Design — Leading and trailing 30-degree chamfered edges have been precision-moulded into the A-arms, providing smoother transitions when your vehicle encounters obstacles that are too tall for the suspension to absorb, whilst also improving aerodynamics at high speed.
• Integrated Mud Guard Mounting Points — Purpose-designed mounting points are moulded directly into the A-arms to accept the optional RPM Mud Guards (RPM81412, sold separately), allowing you to add debris protection without drilling or modifying the components.
• Premium Material Construction — Manufactured from nearly indestructible engineering-grade nylon, these A-arms are built to endure the most punishing impacts and extreme driving conditions whilst maintaining their precise geometry.
• Compatibility with RPM Front A-arms — The rear A-arms feature shock mounting positions that perfectly match the additional shock mount hole on the RPM front A-arms (RPM81482, sold separately), allowing you to create a fully integrated suspension geometry package.
• Factory Part Replacement — Direct replacement for stock ARRMA A-arm number AR330249 and stock Durango A-arm number TD330707, making installation straightforward on either vehicle platform.

Technical Performance

The RPM Rear A-arms represent the culmination of extensive engineering development specifically targeting the suspension requirements of 1/10 scale RC vehicles. Every aspect of these components has been refined to deliver measurable performance improvements over factory alternatives. The engineering-grade nylon material used in construction provides exceptional strength-to-weight ratios, meaning you get structural durability without unnecessary mass. At 48 grams per arm, the roughly 10 percent weight saving compared to OEM ARRMA components (which weigh 53 grams) translates into faster suspension response and improved vehicle dynamics. The precision moulding process ensures consistent geometry across both arms, eliminating the small variations that can exist in manufacturing and providing the predictable handling that RC drivers rely on for competitive performance or serious recreational driving. The hinge pin tolerances have been engineered to minimise slop whilst maintaining smooth articulation, and the dual shock mounting positions offer genuine tuning flexibility—the secondary shock mount hole positioned further outboard on the arm allows you to experiment with different ride heights and suspension rates to optimise your setup for specific terrain conditions or driving styles. The 30-degree chamfered edges aren't merely aesthetic; they serve genuine functional purposes by reducing stress concentrations at the edges of the component and improving aerodynamic efficiency at high speeds where RC vehicles operate. These A-arms are sold as a pair, providing both rear mounting positions, and are fully compatible with the ARRMA Kraton, Talion and Outcast ranges as well as the Durango DEX8T, making them one of the most versatile suspension upgrades available for this vehicle platform in the UK RC market.

What's in the Box

• RPM Rear A-arms x2 (left and right pair)

What You Need to Complete

• Compatible RC vehicle: ARRMA Kraton, Talion, Outcast (6S versions) or Durango DEX8T
• Optional: RPM Mud Guards (RPM81412) for debris protection in wet or muddy conditions
• Optional: RPM Front A-arms (RPM81482) to create a matched suspension geometry package

Frequently Asked Questions

• Will these RPM rear A-arms fit my ARRMA Outcast, Kraton or Talion RC vehicle? — Yes, these A-arms are specifically engineered for the ARRMA Kraton, Talion and Outcast models, as well as the Durango DEX8T. They are direct replacements for the factory A-arms (ARRMA part number AR330249 and Durango part number TD330707). However, please note that one user reported these A-arms may not be compatible with the ARRMA Outcast v5 despite website specifications, so if you own a v5 model, we recommend contacting our expert team at RC Model Shop to confirm compatibility before ordering.
• How much weight do these A-arms save compared to factory components? — RPM Rear A-arms weigh 48 grams each, which represents approximately a 10 percent weight saving compared to the stock ARRMA components at 53 grams each. This weight reduction improves suspension response, reduces unsprung weight, and enhances overall vehicle agility and handling characteristics.
• Can I use stock mud guards with these A-arms? — No, the stock Durango dirt guards (part number TD330764) are not compatible with these RPM A-arms. Instead, you'll need the optional RPM Mud Guards (part number RPM81412), which are specifically engineered with mounting points moulded directly into the RPM A-arms to prevent dirt and mud from accumulating in your rear suspension and drivetrain components.
• What is the benefit of the second shock mount hole on these A-arms? — The additional shock mount hole positioned further out on the arm enables a lower profile suspension setup, allowing your shocks to lay down at more aggressive angles. This lowers your vehicle's ride height and centre of gravity, which improves cornering performance and handling precision—a feature that's especially valuable for competitive RC drivers fine-tuning their setup.
• Do these A-arms work with other brands of suspension components? — No, the RPM Mud Guards (part number RPM81412) work exclusively with RPM A-arms (specifically RPM81402 and RPM81405) and are not designed to work with stock or any other aftermarket A-arms. However, the rear A-arms themselves will accept optional RPM components like the mud guards which feature integrated mounting points.
• What is the benefit of the 30-degree chamfered edges? — The leading and trailing 30-degree chamfered edges provide smoother transitions when your vehicle encounters obstacles that are too tall for the suspension to absorb, reducing stress on the A-arms. These chamfered edges also improve aerodynamic efficiency at high speeds, contributing to overall performance gains.
• Can I pair these rear A-arms with RPM front A-arms? — Yes, absolutely. The shock mounting positions on these rear A-arms have been engineered to match the additional shock mount hole on the RPM front A-arms (part number RPM81482, sold separately), allowing you to create a fully integrated and matched suspension geometry package for optimal performance.

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. 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 RPM Rear A-arms for the ARRMA Kraton, Talion and Outcast RPM81402 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 contact us — we look forward to helping you get the most out of your RC experience.