RPM82355

Overview

The RPM TRAXXAS X-MAXX UPPER & LOWER A-ARM BLUE (RPM82355) represents a game-changing upgrade for owners of the legendary Traxxas X-Maxx monster truck. If you're serious about RC monster truck performance and durability, these engineered suspension arms are precisely what you need. Immediately after Traxxas released the X-Maxx, RPM customers across the UK and beyond started reporting that they needed stronger A-arms capable of handling the weight and punishment these massive trucks can deliver. RPM responded by conducting extensive research, reviewing numerous photographs of stock A-arm damage to identify weak points, and engineering a solution that transforms your truck's suspension into an unbreakable system.

Whether you're a weekend basher pushing your X-Maxx to its limits, a competitive racer demanding maximum reliability, or an RC enthusiast who refuses to accept stock limitations, these A-arms deliver the strength and durability you're seeking. The RPM team engineered these components from the ground up to be the strongest and lightest A-arms available for the X-Maxx, combining proven design principles with advanced materials science to create suspension components that simply won't let you down when you need them most.

Available in multiple colours including blue, black, and green, these suspension arms are an essential upgrade for any serious X-Maxx owner in the UK looking to maximise their investment and get the most out of their brushless RC monster truck.

Key Features

• Proven Design Engineering — RPM used their proven A-arm designs from past successful builds to create the upper support structure, ensuring you benefit from years of real-world testing and refinement that translates directly to durability and reliability in your truck.
• Superior Strength and Light Weight — These A-arms are engineered to be stronger than stock Traxxas components while maintaining a lighter weight, which improves overall handling characteristics and reduces stress on your drivetrain components.
• Enhanced Ground Clearance — The lower A-arm features better ground clearance compared to stock arms, reducing the risk of damage during aggressive driving and allowing you to attack terrain with more confidence.
• Advanced Cross-Section Design — The lower A-arm cross section is based on RPM's proven 1:5 scale HPI Baja A-arms, bringing proven heavy-duty suspension technology directly to your X-Maxx for exceptional impact resistance.
• Double Support Beam Technology — A double support beam on the lower arms spreads impact energy over a larger area, meaning hard hits and big jumps won't damage your suspension or force you into expensive repair sessions.
• Universal Fit Design — These arms fit on any corner of your truck with no modifications needed, eliminating confusion about which arm goes where and allowing complete suspension customisation across all four corners.
• Engineering Grade Nylon Material — Moulded from RPM's trademark blend of incredibly tough, engineering-grade nylon, these arms provide flexibility and impact absorption that prevents brittle failure under extreme stress.
• Made in the USA — Built to the highest manufacturing standards in the United States, ensuring consistent quality and supporting premium engineering practices throughout production.
• Industry-Leading Warranty — Backed by RPM's industry-leading limited lifetime warranty against breakage, providing genuine peace of mind and demonstrating the manufacturer's absolute confidence in product durability.
• Compatible Across X-Maxx Range — These arms work with all Traxxas X-Maxx variants including the X-Maxx Belted 4WD Brushless RTR 8S Monster Truck in orange, blue, red, and green, plus the X-Maxx Ultimate models and X-Monster chassis variations.

Technical Performance

The RPM X-Maxx A-arms represent a significant engineering advancement in suspension durability for large-scale RC monster trucks. Constructed from RPM's proven engineering-grade nylon blend, these components are designed to withstand the tremendous forces generated by an 8S brushless drivetrain pushing a massive truck frame across challenging terrain. The upper A-arm utilises proven design principles from successful builds, creating a support structure engineered to handle anything you throw at it. The lower A-arm incorporates a cross-section directly inspired by RPM's battle-tested 1:5 scale HPI Baja A-arms, bringing heavy-duty suspension technology that has proven itself in the most demanding racing environments down to your X-Maxx. The double support beam design on the lower arms distributes impact forces across a wider area, effectively preventing the catastrophic failures common with stock components when landing big jumps or hitting obstacles at speed. These arms replace the stock Traxxas upper A-arm (#7729) and lower A-arms (#7730 and #7731), providing a direct upgrade path for existing X-Maxx owners. The universal fit design means no modification is required regardless of which corner of your truck you're upgrading, and the lighter weight compared to stock components reduces overall vehicle mass whilst maintaining superior strength characteristics. For users engaging in heavy use, attempting big jumps, or running extreme power settings, RPM recommends upgrading the lower A-arm hinge pins to CEN #GS025 threaded hinge pins for maximum durability, though this is optional for standard use.

What's in the Box

• One upper A-arm
• One lower A-arm
• Complete suspension component set in blue finish

What You Need to Complete

• Three additional RPM82355 packages (four packages total required for a complete full vehicle suspension upgrade)
• For heavy use and extreme driving: CEN #GS025 threaded hinge pins (optional upgrade, not included)

Frequently Asked Questions

• How many A-arm packages do I need for my Traxxas X-Maxx? — You will need four complete packages of the RPM82355 to upgrade all four corners of your X-Maxx, as each package contains one upper and one lower A-arm.
• Will these A-arms fit my specific X-Maxx model? — Yes, these arms are compatible with all Traxxas X-Maxx variants including the X-Maxx Belted 4WD Brushless RTR 8S Monster Truck in orange, blue, red, and green, plus the X-Maxx Ultimate models in blue X and green X, and the X-Monster chassis.
• What makes RPM A-arms better than stock Traxxas components? — RPM A-arms are engineered to be both stronger and lighter than stock components, featuring enhanced ground clearance, a double support beam design that distributes impact energy, and a cross-section based on proven 1:5 scale racing A-arms that deliver superior durability in demanding conditions.
• Will upgrading my A-arms affect my truck's performance? — Yes, upgrading to these stronger, lighter arms will improve overall handling by reducing suspension stress and allowing more confident aggressive driving without worrying about breakage or damage.
• Do I need any special tools to install these A-arms? — The RPM A-arms are designed as direct replacements for stock Traxxas components and feature a universal fit design, meaning installation should follow standard suspension arm installation procedures with no special tools required.
• Are these suitable for beginners? — These A-arms are an upgrade component rather than a beginner item, intended for X-Maxx owners looking to improve durability and performance, but installation is straightforward for anyone with basic RC maintenance experience.
• What warranty protection do I get with these arms? — RPM backs these A-arms with an industry-leading limited lifetime warranty against breakage, providing comprehensive protection and demonstrating genuine manufacturer confidence in product durability.
• Can I use these A-arms on all four corners of my truck? — Yes, the universal fit design means these arms work on any corner of your X-Maxx with no modifications needed, providing complete flexibility in suspension customisation.
• Do I need to upgrade my hinge pins when installing these A-arms? — For most standard use, no additional parts are necessary, but for heavy use, big jumps, or extreme power settings, RPM recommends upgrading to CEN #GS025 threaded hinge pins for maximum durability.

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 TRAXXAS X-MAXX UPPER & LOWER A-ARM BLUE RPM82355 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.