RPM Front Left Suspension A-Arms for Traxxas Revo 2.0 Blue RPM81515

Overview

The RPM Blue Front Left A-Arms for E-Revo Brushless (RPM81515) represent a significant upgrade over the standard Traxxas suspension components found on the Revo 2.0. Whether you're a serious RC racer, a weekend basher, or an enthusiast looking to squeeze extra performance out of your brushless RC truck UK, these engineering-grade suspension arms deliver the durability and lightweight construction that competitive RC drivers demand. RPM has engineered these A-arms specifically for the Traxxas Revo 2.0 platform, combining rigorous design principles with advanced materials to create suspension components that outperform the factory originals in every measurable way.

Built from an indestructible blend of engineering-grade nylons and manufactured in the USA, RPM's suspension arms have earned a reputation for reliability and longevity in the demanding world of RC vehicle racing and bashing. These front left A-arms are sold as a matched pair consisting of one upper and one lower A-arm, engineered to work together seamlessly within your Revo 2.0's suspension geometry. Every set comes with RPM's limited lifetime warranty against breakage, giving you peace of mind that your investment is protected. For RC enthusiasts across the UK seeking genuine performance upgrades that won't compromise durability, these blue A-arms represent an intelligent choice backed by proven engineering.

The upgrade from stock Traxxas suspension to RPM components is one of the most impactful modifications you can make to a Revo 2.0. Not only will you experience improved handling characteristics and increased durability during aggressive driving, but you'll also benefit from the refined aerodynamics and clever geometry that RPM has incorporated into every set. These A-arms are designed to work harder and last longer, making them an essential component for anyone serious about maximising their RC monster truck's potential.

Key Features

• 5 Grams Lighter Per Side — RPM A-arms weigh in at 5 grams less than the standard Traxxas components on each side, delivering a combined weight reduction of 10 grams per set. This seemingly small reduction translates into measurable improvements in acceleration, braking response, and overall vehicle agility, helping your brushless RC truck respond more quickly to your inputs and maintain better momentum through technical sections.
• Superior Durability Compared to Stock — While Traxxas has beefed up the Revo 2.0 suspension arms, they still cannot match the toughness of RPM's engineering-grade nylon construction. RPM components are specifically designed to withstand the rigours of aggressive RC driving, whether you're racing competitively or bashing in your local RC club's track.
• Optimised Aerodynamic Geometry — The angled leading and trailing edges of RPM A-arms don't just look aggressive—they cut through the air more efficiently during high-speed runs. More importantly, these same strategically angled edges allow the A-arms to slip up and over tall objects encountered during driving with less chance of a direct impact stopping you in your tracks, improving obstacle clearance and durability.
• Deeper Pivot Ball Hole Design — RPM A-arms feature a deeper pivot ball hole than stock Traxxas components to prevent the pivot ball from bottoming out. This thoughtful engineering detail means you can thread the pivot ball into the A-arm correctly without risking damage or voiding your warranty, extending component lifespan.
• USA Manufacturing and Limited Lifetime Warranty — All RPM A-arms are manufactured in the United States to strict quality standards, and each set is backed by RPM's limited lifetime warranty against breakage. This commitment to American manufacturing and customer satisfaction means you're buying a product built to last.
• Front Left Configuration — These A-arms are specifically designed for the front left position on your Revo 2.0, ensuring perfect fitment and alignment with your truck's suspension geometry. They replace the standard Traxxas part number #8632, making installation straightforward for experienced RC enthusiasts.
• Compatible with Revo 2.0 Adjustability — RPM Upper Front A-arms were designed to utilise most of the adjustability options available on the Revo 2.0 platform, allowing you to fine-tune your suspension geometry for your driving style and track conditions. This flexibility makes them suitable for everything from competitive racing to recreational bashing.
• Blue Colour Option — Available in striking blue, these A-arms allow you to customise your truck's appearance while upgrading performance. The colour-coded design makes it easy to identify which components are OEM and which are upgraded, simplifying future maintenance and troubleshooting.

Technical Performance

The RPM Blue Front Left A-Arms represent a masterclass in suspension component engineering. Manufactured from a proprietary blend of engineering-grade nylons, these components deliver superior strength-to-weight ratios compared to standard Traxxas parts. The 5-gram per-side weight reduction might seem marginal on paper, but across a complete suspension upgrade (front and rear), this adds up to meaningful improvements in your brushless RC truck's responsiveness. The angled leading and trailing edges aren't merely aesthetic flourishes—they represent careful aerodynamic consideration that reduces drag and improves airflow around the suspension, which becomes increasingly important as you push higher speeds. The deeper pivot ball hole is a critical design feature that prevents common failure points; by spacing the pivot ball threads properly within the A-arm, RPM has eliminated a source of stress that causes premature cracking in standard components. Material selection is paramount in RC suspension design, and RPM's engineering-grade nylon blend provides the ideal balance between impact resistance and flexibility, allowing these A-arms to absorb shocks from rough terrain whilst maintaining structural integrity during aggressive cornering. These A-arms are engineered to integrate seamlessly with your Revo 2.0's existing suspension system, though compatibility with long travel (LT) style rockers is not supported. The upper A-arms must be installed in the upper roll-centre hinge pin hole and cannot be used in the lower position, as this would cause contact with the axle outdrive. For maximum performance and to verify proper installation, RPM recommends using a camber gauge (part #70950) to check camber angles once mounted, with optimal angles typically ranging from 0° to -3° depending on personal driving preference and track conditions.

What's in the Box

• One upper A-arm (front left)
• One lower A-arm (front left)
• Limited lifetime warranty documentation

Installation Notes

• These A-arms replace standard Traxxas part number #8632
• Compatible with Traxxas Revo 2.0 platform only
• Not compatible with long travel (LT) style rockers
• Upper A-arms must be installed in upper roll-centre hinge pin hole only—do not use in lower roll-centre position as this will cause axle contact
• Thread pivot ball into A-arm until the pivot ball threads end exactly at the end of the A-arm; do not bottom the pivot ball threads in the hole to avoid stressing the A-arms and voiding warranty
• Camber gauge (RPM part #70950) recommended for proper suspension geometry verification after installation
• Slight adjustments to upper and lower pivot balls should be made incrementally; avoid overturning to prevent component stress

Frequently Asked Questions

• Are these A-arms stronger than the stock Traxxas components on my Revo 2.0? — Yes, RPM A-arms are specifically engineered to be significantly tougher than the standard Traxxas suspension arms, whilst also being 5 grams lighter per side. RPM's proprietary engineering-grade nylon blend provides superior durability whilst reducing overall weight, making them ideal for both competitive racing and aggressive recreational bashing where durability is non-negotiable.
• How much weight will I save by upgrading to RPM A-arms? — Each RPM A-arm weighs 5 grams less than the stock Traxxas equivalent, delivering a total weight reduction of 10 grams for the front left pair. When combined with RPM upgrades on other suspension points, this cumulative weight savings translates into noticeably improved acceleration and braking response on your Revo 2.0.
• Will these A-arms work with long travel suspension kits? — No, RPM Revo 2.0 A-arms are not compatible with long travel (LT) style rockers. If you're running or planning to run a long travel suspension setup, you'll need to confirm compatibility with RPM directly before purchasing.
• What is the difference between the RPM81515 and RPM81512 models? — Both the RPM81515 and RPM81512 are front left A-arm sets that replace the same stock Traxxas part number #8632. The primary difference is colour: the RPM81515 comes in blue, whilst the RPM81512 comes in black. Performance and fitment are identical between the two options.
• Can I use the upper A-arm in the lower roll-centre hinge pin hole? — No, the upper A-arm will contact the axle outdrive if installed in the lower roll-centre hinge pin hole. The upper A-arm must be installed only in the upper roll-centre position to avoid component damage and maintain proper suspension geometry.
• How do I install the pivot ball correctly to avoid voiding my warranty? — RPM A-arms feature a deeper pivot ball hole than standard components. To install correctly, thread the pivot ball into the A-arm until the pivot ball threads end exactly at the end of the A-arm. Do not bottom the pivot ball threads in the hole, as this will stress the A-arms and void your RPM limited lifetime warranty. Take your time during installation and ensure the pivot ball is seated properly.
• Is there a warranty on these A-arms? — Yes, all RPM A-arms come with a limited lifetime warranty against breakage. This warranty covers manufacturing defects and failure under normal racing conditions, provided the components are installed correctly and the pivot ball is not bottomed in the hole.
• Do I need to buy a camber gauge to use these A-arms? — Whilst not required for basic operation, RPM recommends using a camber gauge (part #70950) to verify proper camber angles after installation. Proper camber angles (typically 0° to -3°) ensure optimal tyre wear, handling, and performance, so the investment in a gauge is worthwhile if you're serious about tuning your Revo 2.0.
• Are these A-arms suitable for a beginner? — These are suspension upgrade components designed for existing Revo 2.0 owners who want to improve durability and performance. As with any RC upgrade, installation requires basic mechanical knowledge and the correct tools. If you're new to RC and unsure about suspension work, consulting experienced RC enthusiasts or a local RC hobby shop UK for guidance is recommended.
• What is the benefit of the angled leading and trailing edges? — The angled edges serve dual purposes: they improve aerodynamic efficiency by cutting through the air more cleanly, and they allow the A-arms to slip up and over tall obstacles with reduced risk of direct impacts that could stop your truck. This design feature is particularly valuable when driving over rough terrain or navigating technical course sections.

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 RPM BLUE FRONT LEFT A-ARMS FOR E-REVO BRUSHLESS RPM81515 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.