RPM Front Or Rear A-Arms for Traxxas Slash 4X4 1/10 Suspension Blue RPM80705

Overview

The RPM Front Or Rear A-Arms For Traxxas Slash 4X4 represent a premium suspension upgrade designed specifically for the Traxxas Slash 4×4, Stampede 4×4, Rustler 4×4, Jato 4×4, Hoss 4×4 and Rally models. Whether you're a dedicated RC enthusiast in the UK looking to enhance your short course truck or a weekend basher seeking improved handling characteristics, these A-arms deliver professional-grade performance at an accessible price point. Manufactured by RPM, a company renowned for producing some of the most durable and precisely engineered components in the RC hobby, these replacement A-arms represent a straightforward yet transformative upgrade that significantly improves suspension responsiveness and durability across a wide range of driving conditions.

When you choose RPM A-arms for your 1:10 scale Traxxas short course truck, you're investing in engineering excellence that has been designed, manufactured and produced right here in southern California, USA. RPM has engineered these A-arms to replace the original Traxxas stock parts (numbers 3655R and 3655X), delivering noticeable improvements in suspension performance that translate directly to better on-track handling and off-road capability. Available in a striking blue colour finish alongside black, green and red options, these A-arms combine functional performance enhancements with aesthetic appeal, allowing you to customise the look of your RC car whilst simultaneously optimising its suspension dynamics.

The beauty of choosing RPM suspension components lies in their meticulous attention to detail and commitment to durability. These are not cosmetic upgrades; they represent genuine engineering improvements that address common wear points and tolerance issues found in standard suspension systems. For anyone serious about RC short course truck performance in the UK market, whether competing in local races or enjoying recreational bashing sessions, RPM A-arms have become the go-to choice amongst experienced hobbyists who demand reliability and precision engineering.

Key Features

• Precision-engineered hinge pin tolerances — RPM has eliminated suspension slop by tightening the tolerances around the hinge pins, which means your A-arms will maintain consistent geometry through corners and rough terrain, resulting in more predictable handling characteristics and improved cornering confidence.
• Reduced fore and aft movement — The design significantly reduces fore and aft movement of the A-arms at both the inner hinge pin and at the axle carriers by better than 90 percent, which translates to a tighter, more responsive suspension that absorbs impacts more effectively whilst maintaining optimal wheel alignment.
• Dramatic durability improvements — Being manufactured by RPM using their trademark blend of incredibly durable nylons, these A-arms are engineered to withstand the demands of both competitive racing and aggressive recreational driving, backed by an industry-leading warranty that demonstrates the manufacturer's confidence in product longevity.
• Weight reduction of 6.5 grams per arm — Each A-arm weighs 6.5 grams less than stock Traxxas components, resulting in a total weight loss of just under one ounce when upgrading both front and rear suspension, which improves acceleration, deceleration and overall responsiveness of your 1:10 scale RC vehicle.
• Professional aesthetic design — Featuring RPM's traditional 30-degree leading and trailing edges combined with huge bosses for shock and sway bar mounts, these A-arms offer superior visual appeal alongside functional engineering benefits, with the option to choose from four colour finishes.
• Increased shock and sway bar mounting options — The large, well-designed bosses provide robust mounting points for shocks and sway bars, ensuring components remain securely fastened during intense driving sessions and allowing for precise suspension tuning adjustments.
• Optimised for 1:10 scale Traxxas models — These A-arms are specifically engineered to fit the 1:10 versions of the Slash 4×4, Stampede 4×4 and Rally 4×4, ensuring perfect fitment and alignment without modification, though they do not fit the Fiesta ST Rally variant.
• Direct replacement compatibility — Designed to replace stock Traxxas parts 3655R (rear) and 3655X (front), installation is straightforward for anyone with basic RC maintenance knowledge, making this an accessible upgrade for UK RC enthusiasts at all skill levels.
• Available in multiple colour options — Beyond the blue finish, RPM offers these A-arms in black, green and red, allowing you to coordinate with your truck's colour scheme or personal preference whilst maintaining identical performance characteristics.

Technical Performance

The engineering quality embedded within these RPM A-arms reflects decades of suspension development and real-world testing in competitive RC environments. RPM has employed advanced manufacturing techniques and proprietary nylon blends to create components that deliver measurably superior performance compared to standard Traxxas stock parts. The elimination of suspension slop through tighter hinge pin tolerances represents a critical engineering achievement, as suspension geometry directly impacts how your Traxxas short course truck responds to driver input and terrain irregularities. By reducing fore and aft movement by over 90 percent at both inner hinge pin and axle carrier connection points, these A-arms maintain optimal suspension alignment through the most demanding driving scenarios, whether you're navigating tight technical corners on a race track or launching off jumps during recreational bashing sessions.

The weight reduction of 6.5 grams per arm contributes to improved vehicle dynamics in measurable ways; less unsprung weight means faster suspension response, improved traction whilst cornering, and better overall vehicle control. The durable nylon construction ensures these components will withstand repeated impacts, high-speed driving, and the general abuse that RC vehicles experience during regular use, all whilst maintaining dimensional accuracy and performance characteristics. The comprehensive shock and sway bar mounting bosses provide solid anchor points for suspension tuning components, allowing experienced drivers to dial in their setup precisely. RPM's commitment to manufacturing excellence, combined with their USA-based production facility in southern California, means every component meets strict quality standards before being shipped to UK RC retailers. Whether you're upgrading a competition-spec Traxxas Slash 4×4 or enhancing a recreational basher, these A-arms deliver measurable improvements in handling precision, durability and aesthetic appeal that make them worthy investment in your RC car.

What's in the Box

• 1 pair of RPM Front Or Rear A-Arms (one left and one right arm in each package)
• Blue colour finish

What You Need to Complete

• A second package of RPM A-arms is required to complete your vehicle (one package provides either front or rear pair; two packages are needed for a complete suspension upgrade of both front and rear)
• Traxxas Slash 4×4, Stampede 4×4, Rustler 4×4, Jato 4×4, Hoss 4×4 or Rally 4×4 RC vehicle
• Basic RC maintenance tools (hex wrenches and hinge pin tools for installation)

Frequently Asked Questions

• Do RPM A-arms require two packages to upgrade my entire truck? — Yes, RPM A-arms are sold as pairs (one left and one right arm), so you will need to purchase two packages to upgrade both the front and rear suspension of your Traxxas Slash 4×4 or compatible model. One package covers either the front or rear suspension system.
• Will these RPM A-arms fit my Traxxas Slash 4×4? — These A-arms are specifically designed for 1:10 scale versions of the Traxxas Slash 4×4, Stampede 4×4, Rustler 4×4, Jato 4×4, Hoss 4×4 and Rally 4×4. They replace stock Traxxas parts 3655R and 3655X directly. Please note that these A-arms do not fit the Fiesta ST Rally variant.
• How much weight will I save by upgrading to RPM A-arms? — Each RPM A-arm is 6.5 grams lighter than the equivalent Traxxas stock component, resulting in a total weight saving of just under one ounce per pair. This weight reduction improves acceleration, handling response and overall vehicle dynamics, which is particularly beneficial for competitive racing applications.
• Can I use the upper hinge pin hole on the rear axle carriers with these A-arms? — No, the upper hinge pin hole of the rear axle carriers cannot be used with these A-arms due to strengthening designs incorporated by RPM that reduce clearance around the rear axle. This strengthening feature contributes to the improved durability and performance of the suspension system.
• What makes RPM A-arms better than stock Traxxas components? — RPM has engineered these A-arms with tighter tolerances around the hinge pins, reducing suspension slop significantly. Additionally, fore and aft movement at the inner hinge pin and axle carriers is reduced by better than 90 percent, creating a more responsive and durable suspension system. The components are manufactured from RPM's trademark durable nylon blend and offer improved aesthetic appeal alongside functional performance enhancements.
• Are these A-arms easy to install on my RC car? — Yes, RPM A-arms are direct replacement parts for Traxxas 3655R and 3655X components. If you have basic RC maintenance experience and standard tools such as hex wrenches and hinge pin tools, installation is straightforward and does not require modifications to your vehicle.
• Is this a worthwhile upgrade for recreational driving? — Absolutely. Whilst competitive racers will appreciate the precision improvements and weight savings, recreational bashers will notice improved handling characteristics, better suspension response and enhanced durability during aggressive driving sessions. The upgrade is suitable for any RC enthusiast seeking improved suspension performance.
• Why is RPM manufacturing quality important for RC car suspension components? — RPM's reputation for engineering excellence and durable nylon components means you're investing in suspension parts that will withstand repeated impacts, high-speed driving and challenging terrain. The industry-leading warranty backing these A-arms demonstrates the manufacturer's confidence in their durability and performance longevity.

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 Front Or Rear A-Arms For Traxxas Slash 4X4 - Blue 1Pr RPM80705 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.