RPM Front Left A-arms for Traxxas E-Revo 2.0 Black RPM81512

Overview

The RPM BLACK FRONT LEFT A-ARMS FOR E-REVO BRUSHLESS RPM81512 represent a significant upgrade over the factory Traxxas suspension components, engineered specifically for the Traxxas E-Revo 2.0 platform. Whether you're a dedicated basher, competition driver, or RC enthusiast exploring performance upgrades for your brushless RC car UK, these front left A-arms deliver the combination of strength, weight savings, and refined engineering that serious hobbyists demand. RPM has earned a reputation as one of the leading suspension component manufacturers in the RC industry, and this product exemplifies their commitment to quality and innovation.

If you're running a ready to run RC monster truck or have invested in an E-Revo 2.0 chassis, you understand that the factory suspension components can become a limiting factor during aggressive driving. Stock Traxxas A-arms, whilst improved in the 2.0 generation, still don't match the durability or performance characteristics of purpose-built aftermarket alternatives. The RPM front left A-arm addresses this gap by offering a lighter, stronger, and geometrically superior option that transforms how your E-Revo 2.0 handles in both casual bashing and competitive racing scenarios.

This is a single front left A-arm (upper and lower pair) manufactured to exacting standards using engineering-grade nylon blends, moulded and assembled in the USA. For UK RC hobbyists seeking to enhance their Traxxas E-Revo 2.0 performance, this component represents a worthwhile investment that pays dividends in durability, handling, and long-term reliability.

Key Features

• Lightweight Construction — The RPM front left A-arms weigh 5 grams per side less than the factory Traxxas components, delivering a total weight loss of 10 grams per pair, which improves acceleration, deceleration, and overall responsiveness of your RC vehicle without compromising structural integrity.
• Superior Strength — Manufactured from an indestructible blend of engineering-grade nylons, these A-arms are considerably stronger than stock Traxxas components, resisting impacts and stress that would crack or bend factory suspension arms during aggressive bashing and racing.
• Optimised Geometry — The angled leading and trailing edges cut through the air more cleanly and efficiently, reducing aerodynamic drag whilst simultaneously allowing the A-arms to slip up and over tall obstacles with less risk of direct impact, keeping you rolling when lesser suspension arms would fail.
• Deeper Pivot Ball Hole — The engineered deeper pivot ball hole prevents the pivot ball from bottoming out, ensuring consistent suspension performance and eliminating a common failure point found on factory suspensions.
• Direct Factory Replacement — RPM #81512 directly replaces stock Traxxas #8632, making installation straightforward for users familiar with E-Revo 2.0 maintenance and suspension adjustment.
• Limited Lifetime Warranty — All RPM A-arms are backed by a limited lifetime warranty against breakage, providing confidence and peace of mind in your investment, which reflects RPM's faith in their engineering and materials.
• USA Manufacturing — Proudly manufactured in the United States using strict quality control standards, ensuring consistency, durability, and support for UK RC enthusiasts.
• Available Colour Options — The black version blends seamlessly with most E-Revo 2.0 builds, with blue options also available from RPM for those seeking a contrasting appearance.

Technical Performance

The RPM BLACK FRONT LEFT A-ARMS FOR E-REVO BRUSHLESS deliver performance engineering that addresses the real limitations of factory suspension. The engineering-grade nylon material used in these A-arms has been specifically formulated to provide superior strength whilst maintaining a lighter overall weight compared to Traxxas stock components. This dual achievement of reduced mass and increased durability is a hallmark of RPM's suspension design philosophy. The geometry of the A-arms, particularly the angled leading and trailing edges, represents careful CAD engineering and real-world testing, ensuring that these components perform consistently whether you're driving an unmodified E-Revo 2.0 or a heavily tuned, high-powered brushless RC car. The deeper pivot ball hole design prevents premature wear and failure, a detail often overlooked by competitors but crucial for long-term reliability. Installation requires only basic tools and mechanical knowledge, making these A-arms accessible to intermediate and advanced users alike. When paired with the rest of a well-maintained suspension system, these front left A-arms contribute significantly to improved cornering grip, more predictable handling in transitions, and better overall chassis balance. The black colour finish is UV-stabilised to resist fading from extended outdoor use, maintaining the aesthetic appearance of your RC setup over time.

What's in the Box

• 1x Upper Front Left A-arm (black, engineering-grade nylon)
• 1x Lower Front Left A-arm (black, engineering-grade nylon)

Important Technical Notes

• Long Travel Rocker Compatibility — RPM E-Revo 2.0 A-arms will not work with long travel (LT) style rockers, so verify your rocker type before installation to ensure compatibility.
• Hinge Pin Placement — The upper A-arm must never be installed in the lower roll-centre hinge pin hole, as this will cause the A-arm to contact the outdrive of the axle, damaging both components.
• Pivot Ball Installation — RPM A-arms feature a deeper pivot ball hole than factory components. 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-arm and void your RPM warranty.
• Camber Adjustment — Once installed, use an RPM Camber Gauge (Part #70950, sold separately) to accurately check camber angles on each wheel. Proper camber angles range from 0° to -3° depending on driving style and track conditions, but front wheels should be identical to each other. Make only slight changes at a time to the upper and lower pivot balls.

Frequently Asked Questions

• Will these RPM A-arms fit my Traxxas E-Revo 2.0? — Yes, RPM #81512 is engineered specifically for the Traxxas E-Revo 2.0 platform and directly replaces the stock Traxxas #8632 front left A-arms. These are not compatible with earlier E-Revo generations, so verify you own the 2.0 variant before purchasing. The front left configuration means you are receiving one upper and one lower A-arm for the left front corner of your vehicle.
• Are these A-arms significantly stronger than the factory Traxxas components? — Yes, RPM A-arms are considerably stronger than stock Traxxas suspensions whilst simultaneously being 5 grams lighter per side. This is achieved through superior engineering-grade nylon formulation and optimised geometry, meaning you get both weight savings and increased durability, a combination that factory components cannot match.
• How much do these A-arms weigh, and why does the weight savings matter? — Each side weighs approximately 5 grams less than Traxxas stock arms, providing a total weight loss of 10 grams per pair. In the context of RC vehicle dynamics, this reduction in unsprung mass improves acceleration, allows the suspension to respond more quickly to terrain changes, and enhances overall handling precision, particularly noticeable during high-speed runs and competitive racing.
• What is the significance of the angled leading and trailing edges? — The angled edges serve a dual purpose: they reduce aerodynamic drag by cutting through the air more cleanly, and they allow the A-arms to slip up and over obstacles (rocks, logs, jumps) with reduced risk of a direct impact that would stop your vehicle. This geometric optimisation is the result of RPM's suspension expertise and significantly improves durability during aggressive off-road driving.
• Can I use these A-arms with long travel rockers? — No, these RPM E-Revo 2.0 A-arms are not compatible with long travel (LT) style rockers. If your E-Revo 2.0 is equipped with LT rockers, you will need to verify alternative solutions or revert to standard rocker components before installing these A-arms.
• What does the limited lifetime warranty cover? — RPM A-arms are backed by a limited lifetime warranty against breakage under normal usage. This warranty does not cover cosmetic damage, damage from incorrect installation (such as bottoming the pivot ball threads), or failures resulting from misuse. The warranty reflects RPM's confidence in their engineering and materials.
• How do I properly install the pivot ball? — RPM A-arms feature a deeper pivot ball hole compared to factory components. Thread the pivot ball into the A-arm until the threads of the pivot ball end exactly at the surface of the A-arm. This is critical: do not bottom the threads in the hole, as excessive pressure will stress the A-arm and void your warranty. The deeper hole design prevents the pivot ball from bottoming out during suspension travel.
• Are these A-arms suitable for beginners building their first RC car? — These A-arms are designed as a suspension upgrade rather than a beginner component. They are best suited to users who already own an E-Revo 2.0 and understand basic suspension maintenance. If you're new to RC, we recommend learning with factory components first, then upgrading to RPM when you're ready to enhance performance.
• How do these A-arms improve handling compared to stock Traxxas components? — The combination of reduced weight, increased strength, and optimised geometry results in noticeably improved handling. The lighter A-arms allow the suspension to articulate more responsively, the stronger construction eliminates flex and provides more predictable feedback, and the geometry changes reduce the likelihood of impacts stopping you in your tracks. The cumulative effect is a vehicle that feels more planted, corners more confidently, and suffers fewer mechanical failures.
• What colour options are available? — The RPM81512 model is available in black, which complements most E-Revo 2.0 colour schemes. RPM also manufactures equivalent front left A-arms in blue (RPM81515) for users preferring a contrasting appearance.

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 BLACK FRONT LEFT A-ARMS FOR E-REVO BRUSHLESS RPM81512 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.