Overview
The RPM Extended Left Rear A-arms for Traxxas Summit and Revo represent a premium suspension upgrade for one of the most popular RC vehicle platforms in the UK. Whether you're a seasoned RC basher, a weekend warrior, or someone exploring the world of high-performance 1/10 scale RC cars, these extended rear A-arms deliver the durability and performance upgrade your Traxxas needs. RPM has engineered these components specifically to address demands from the RC community for extended geometry options that maintain stock handling characteristics whilst adding the versatility of adjustable wheelbase configurations.
These extended rear A-arms are engineered around RPM's already solid and proven Revo rear A-arm design, which means you get an ultra-lightweight set of A-arms that are nearly indestructible. If you've been searching for "Traxxas suspension upgrade UK" or "RPM A-arms for Revo," you've found the solution. RC enthusiasts across the United Kingdom trust RPM components for their proven track record of durability and performance, and these extended rear A-arms continue that tradition of excellence.
RPM listened to requests from the RC community and developed these extended rear A-arms to provide options that simply weren't available before. Each set incorporates all stock geometry whilst offering flexibility with either 10mm or 19mm extension options, allowing you to customise your vehicle's wheelbase to suit your driving style and track conditions. When you're ready to invest in genuine, reliable suspension components for your ready to run RC truck or buggy, these A-arms deliver unmatched performance and reliability.
Key Features
- Ultra-Lightweight Construction — These A-arms are designed around proven Revo rear A-arm engineering, delivering exceptional strength whilst minimising weight. Lighter suspension components reduce rotational mass and improve acceleration, handling responsiveness, and overall vehicle agility on the track or trail.
- Nearly Indestructible Durability — RPM extended rear A-arms are moulded using tough engineering-grade materials that withstand the demanding stresses of competitive RC driving and aggressive bashing. The robust construction means fewer breakages, less downtime, and better value for money across multiple seasons of use.
- Flexible Extension Options — Choose between 10mm or 19mm extension to adjust your vehicle's wheelbase geometry. This flexibility allows you to fine-tune handling characteristics for different track conditions, racing styles, or personal preferences without replacing the entire suspension system.
- Stock Geometry Incorporation — These extended A-arms maintain all original stock geometry specifications, ensuring that your vehicle's handling balance, camber angles, and suspension kinematics remain optimised whilst providing the extended wheelbase advantage. This means better handling out of the box with no additional tuning required.
- Direct Traxxas Compatibility — These A-arms are engineered as direct replacements for Traxxas stock parts, including stock numbers 5327, 5333R, and 8633. Whether you own a Summit, Revo, or E-Revo, installation is straightforward and requires no frame modifications or complex adaptations.
- Summit and Revo 2.0 Stock Replacement — For the newer Revo 2.0 and Summit platforms, these arms function as stock replacement components, making them ideal for customers seeking direct drop-in upgrades that enhance durability without changing vehicle geometry.
- Premium Colour Options — Available in classic black, these A-arms look professional and match most popular RC build colour schemes. The sleek finish integrates seamlessly into modern RC vehicle aesthetics.
- Limited Lifetime Warranty — All RPM moulded products are backed by a limited lifetime warranty against breakage, demonstrating the manufacturer's confidence in product quality and giving you peace of mind with your investment.
Technical Performance
The RPM Extended Left Rear A-arms represent engineering excellence in 1/10 scale suspension components. These components are specifically engineered for Traxxas 1/10 scale vehicles including the Summit, Revo, and E-Revo platforms, three of the most popular RC vehicles in the UK hobby market. The extended rear A-arms provide 10mm or 19mm wheelbase extension options, allowing serious RC enthusiasts to adjust their vehicle's geometry for different racing conditions, track layouts, or personal driving preferences. The engineering maintains all original stock suspension geometry throughout the extension range, meaning your vehicle's camber curves, anti-squat characteristics, and overall handling balance remain factory-optimised. These are not modified or altered geometry arms; they are purpose-engineered extensions of proven Revo rear A-arm design. Construction utilises advanced moulded materials that deliver exceptional strength-to-weight ratio, critical for maintaining vehicle responsiveness and acceleration. The arms replace original Traxxas stock parts (5327, 5333R, 8633) making them genuine drop-in replacements, though installation may require 6mm bumper mount spacers and M3 x 16mm screws (sold separately) when converting from standard wheelbase to extended wheelbase configuration. For buyers seeking maximum durability, minimal weight penalty, and proven reliability, these A-arms deliver competitive-grade suspension components for weekend bashers and serious RC racers alike.
What's in the Box
- Extended left rear A-arms (sold as a pair for Traxxas Summit, Revo, and E-Revo)
What You Need to Complete
- 6mm bumper mount spacers (not included — only necessary when installing extended A-arms in place of standard wheelbase components)
- M3 x 16mm screws (not included — only necessary when installing extended A-arms in place of standard wheelbase components)
- Installation instructions (available from RPM website Downloads section for detailed technical guidance)
Frequently Asked Questions
- Are RPM extended A-arms suitable for both competitive racing and casual bashing? — Yes, absolutely. These A-arms are engineered for serious performance yet deliver the durability needed for aggressive bashing. Whether you're competing on a race track or simply enjoying weekend drives, RPM's proven Revo design provides the reliability and consistency that both types of RC enthusiasts demand. The extended geometry options also provide flexibility for different driving styles.
- What is the difference between the 10mm and 19mm extension options? — The extension determines how much your vehicle's wheelbase increases. The 10mm extension provides a subtle geometry adjustment suitable for slight handling tweaks, whilst the 19mm extension delivers more noticeable wheelbase lengthening for drivers seeking more significant chassis geometry changes. Your choice depends on your track conditions and personal preferences.
- Will these A-arms fit my Traxxas Summit or Revo? — These extended rear A-arms are direct replacements for Traxxas stock parts 5327, 5333R, and 8633, confirming compatibility with Summit, Revo, and E-Revo platforms. However, when converting from standard to extended wheelbase, you may need 6mm bumper mount spacers and M3 x 16mm screws (not included). Review the installation instructions available on the RPM website for your specific model.
- Do these A-arms require any special tools or modifications to install? — No special tools are required for basic installation; standard RC hobby tools suffice. However, converting from standard wheelbase to extended wheelbase may require 6mm bumper mount spacers and M3 x 16mm fasteners, which are sold separately. RPM provides detailed installation instructions via their Downloads section to guide you through the process step-by-step.
- How durable are RPM extended A-arms compared to stock Traxxas components? — RPM's extended rear A-arms are engineered to be nearly indestructible, offering significantly greater durability than standard Traxxas stock components. The advanced moulded materials and proven Revo design deliver superior strength-to-weight ratio, meaning fewer breakages, reduced maintenance costs, and longer component lifespan across intensive use.
- Are these arms available in colours other than black? — Yes, RPM moulded products are available in both black and blue colour options, allowing you to match your RC vehicle's colour scheme or personalise your setup according to your preferences.
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 EXTENDED LEFT REAR A-ARMS FOR TRAXXAS SUMMIT & REVO - BLACK RPM70432 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.
- Product Type: Extended Rear A-arms
- Brand: RPM
- Model Number: RPM70432
- Compatibility: Traxxas Summit, Revo, E-Revo
- Position: Left rear
- Colour: Black
- Extension Options: 10mm or 19mm
- Stock Geometry: Maintained across all extension options
- Traxxas Stock Part Replacement: 5327, 5333R, 8633
- Application for Summit and Revo 2.0: Stock replacement arms
- Application for Revo and E-Revo: Extended replacement arms
- Construction: Moulded engineering-grade material
- Weight Characteristic: Ultra-lightweight
- Durability: Nearly indestructible design
- Warranty: Limited lifetime warranty against breakage
- Installation Notes: 6mm bumper mount spacers (not included) and M3 x 16mm screws (not included) may be necessary when installing in place of standard wheelbase A-arms
- Installation Documentation: Installation instructions available via RPM Downloads section
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.
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- 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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