RPM Rear A-Arms for Associated MT8 Suspension Upgrade Black RPM70192

Overview

The RPM Rear A-Arms for Associated MT8 represent a significant upgrade over the stock suspension components found on the Associated Rival MT8. Designed specifically for RC enthusiasts who demand greater durability and reliability from their RC car UK setup, these black nylon A-arms are engineered to withstand the rigours of competitive racing and weekend bashing alike. Whether you're a seasoned racer or an experienced hobbyist looking to enhance your monster truck or stadium truck performance, RPM's rear suspension arms deliver the reinforcement you need to keep your vehicle performing at its best.

RPM has a well-earned reputation for producing some of the toughest replacement parts in the RC hobby, and these rear A-arms exemplify that commitment to durability. By significantly increasing the material thickness and width at critical stress points compared to the stock Associated components, RPM has created a suspension arm that resists breakage and damage far better than the original equipment. For anyone running an Associated MT8 and tired of replacing worn or damaged stock A-arms, this upgrade offers genuine peace of mind and extended component lifespan.

These replacement A-arms are manufactured from engineering grade nylon in black, providing not only superior strength but also a professional appearance. As a trusted UK RC retailer, RC Model Shop stocks genuine RPM components that meet the exacting standards serious hobbyists expect. Whether you're preparing for competition or simply want to make your ready-to-run RC vehicle more durable, the RPM Rear A-Arms for Associated MT8 represent an intelligent investment in your RC car's suspension reliability.

Key Features

• Enhanced Inner Hinge Pin Material — RPM increased the amount of material surrounding the inner hinge pins by 7% and expanded the width of that thicker diameter by nearly 40%, resulting in significantly more reinforcement at this critical connection point where stress concentrates during aggressive driving.
• Reinforced Outer Hinge Pin Construction — The outer hinge pins receive 28% more material with an additional 9% increase in width, providing greater resistance to bending and failure when cornering and landing jumps in high-performance RC stadium trucks and monster trucks.
• Full-Length Uniform Thickness — Unlike stock A-arms that taper dramatically (losing nearly 30% of their thickness at the outer hinge pins), RPM's rear A-arms maintain a consistent 1/2 inch (12.7mm) thickness over nearly their entire length, delivering uniform strength from the chassis mounting point to the wheel hub connection.
• Four Massive Support Beams — Rather than the two support beams found on stock components, RPM's A-arms feature four reinforcing beams throughout their length, compensating for the slight taper at the inner hinge pins and creating an exceptionally rigid structure.
• Engineering Grade Nylon Construction — Manufactured from RPM's nearly indestructible blend of engineering grade nylons, these components deliver the performance and longevity you can trust for demanding RC car applications across the UK and beyond.
• Sold in Pairs — You receive a complete replacement set for the rear suspension, allowing for full rear A-arm replacement on your Associated MT8 in one purchase.
• Direct Stock Replacement — These A-arms replace the rear A-arms from stock Associated RPM25911, ensuring perfect fitment and compatibility with your existing vehicle without modification.
• Black Colour Finish — The professional black moulding provides an attractive appearance while the colour also helps conceal dirt and wear during active use.

Technical Performance

RPM's engineering approach to these rear A-arms represents a comprehensive rethink of suspension durability for the Associated MT8. The performance improvements begin with material science: by strategically increasing thickness and width at the inner and outer hinge pin locations where stress concentrates, RPM has created a component that resists the fatigue cracking and pin hole enlargement that plague stock A-arms over time. The inner hinge pins, which transfer suspension articulation to the chassis, benefit from 7% additional material and 40% greater width, whilst the outer hinge pins connecting to the wheel hubs receive 28% more material and 9% greater width. These aren't arbitrary increases—they target the exact locations where stock components typically fail. The engineering grade nylon material used throughout provides the ideal balance between weight and durability; it's rigid enough to maintain suspension geometry during aggressive driving yet remains lighter than alternative materials. The four support beam design distributes stresses across a larger area of the component, reducing peak stress concentrations and extending component life significantly. Unlike competitors who simply thicken everything uniformly, RPM's engineers have refined the geometry to maintain responsiveness whilst dramatically improving durability, making these ideal for both weekend bashers and competitive RC racers in the UK looking to reduce maintenance downtime and replacement costs.

What's in the Box

• RPM Rear A-Arms for Associated MT8 (pair)
• Pair of black engineering grade nylon replacement suspension arms

Frequently Asked Questions

• Will these RPM A-arms fit my Associated MT8? — Yes, these RPM rear A-arms are specifically designed as a direct replacement for the stock rear A-arms from Associated RPM25911 on the Associated Rival MT8. They require no modifications and install using your existing hardware, making them a straightforward upgrade for any MT8 owner in the UK.
• How much more durable are these than stock A-arms? — Significantly more durable across multiple dimensions. RPM increased inner hinge pin material by 7% and width by 40%, increased outer hinge pin material by 28% and width by 9%, and maintained full 1/2 inch (12.7mm) thickness along nearly the entire length rather than tapering (which causes stock arms to lose 30% thickness at the outer pins). The addition of four support beams instead of two further reinforces the structure, making RPM A-arms the toughest alternative to stock available.
• What is the difference between RPM and stock A-arms? — Stock Associated A-arms are approximately 1/2 inch (12.7mm) thick at their maximum but taper significantly on both ends, losing nearly 30% of their thickness at the outer hinge pins where stresses are highest. RPM A-arms maintain full thickness across nearly their entire length, feature significantly more material at both inner and outer hinge pin areas, and use four support beams rather than two, resulting in exceptional durability for RC car applications.
• Are these A-arms suitable for racing? — Yes, these RPM rear A-arms are equally suitable for recreational bashing and competitive racing. The improved durability means less downtime for repairs and replacements, allowing you to focus on performance rather than maintenance. The consistent geometry ensures your suspension setup remains reliable lap after lap.
• Do I need any tools to install these A-arms? — The source material does not specify tools required for installation. We recommend consulting your Associated MT8 manual or contacting our experienced team at RC Model Shop for installation guidance specific to your vehicle.
• What colour options are available? — These RPM Rear A-Arms are moulded in black. RPM manufactures their A-arms in both black and blue from their engineering grade nylon blend, though this particular product is the black variant.

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 Rear A-Arms Black for Associated MT8 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.