Traxxas Wheel weights, brass (31 grams per wheel) (2 pcs) TRX9880

Overview

The Traxxas Wheel weights, brass (31 grams per wheel) (2 pcs) TRX9880 are essential tuning components designed specifically for the TRX-4MT 1/18 scale monster truck platform. These premium brass wheel weights are engineered to transform your RC truck's handling characteristics by adding precision mass to the lowest point of your vehicle. Whether you're running the TRX-4MT 1/18 1979 Chevrolet K10 Monster Truck or the TRX-4MT 1/18 1979 Ford F-150 Monster Truck, these weights deliver measurable improvements in anti-rollover stability and rock-climbing capability that serious RC enthusiasts and weekend bashers alike will immediately notice.

For RC hobbyists in the UK looking to optimise their TRX-4MT performance, these brass wheel weights represent a game-changing upgrade that goes beyond basic aesthetics. By positioning 31 grams of additional mass at each wheel, you're fundamentally altering your truck's centre of gravity and weight distribution, which directly translates to superior traction, better cornering stability, and dramatically improved climbing angles on challenging terrain. These weights are not cosmetic upgrades—they are functional performance enhancements that make a tangible difference to how your ready-to-run RC monster truck behaves in real-world driving conditions.

RC car enthusiasts across the UK have long relied on Traxxas genuine components to elevate their vehicles from standard builds to high-performance machines. These brass wheel weights are a perfect example of how thoughtful engineering and quality materials can unlock potential that exists within your existing platform. If you're serious about getting the absolute best from your TRX-4MT, these weights are a must-have addition to your tune-up arsenal.

Key Features

• Premium Brass Construction — Each weight is manufactured from high-quality brass, a material chosen specifically for its superior density and durability compared to standard plastic alternatives. Brass weights provide consistent performance over extended use without degradation, ensuring your truck handles the same way after 100 hours of driving as it did on day one.
• 31 Grams Per Wheel — Each brass weight adds precisely 31 grams of additional mass to the lowest part of your TRX-4MT. This specific weight has been engineered by Traxxas to deliver optimal improvements in weight distribution, anti-rollover stability, and rock-climbing capability without compromising overall vehicle dynamics or creating unwanted side effects.
• Sold as a Pair — This package includes two wheel weights, providing comprehensive weight distribution improvements across your front or rear axle. For maximum stability enhancement, serious enthusiasts often purchase multiple pairs to outfit all four wheels of their TRX-4MT.
• Anti-Rollover Stability Improvement — By adding mass to the wheels, the weights lower your truck's centre of gravity and dramatically reduce the likelihood of tip-overs during aggressive cornering, jumps, and high-speed manoeuvres. This stability enhancement is particularly valuable when driving on uneven terrain or attempting challenging climbing angles.
• Superior Rock-Climbing Capability — The improved weight distribution and traction provided by these brass weights enable your TRX-4MT to tackle steeper inclines and more challenging obstacles. The additional mass at the wheels increases ground contact and grip, allowing you to conquer terrain that would be impossible with standard beadlock barrels.
• Replaces Standard Beadlock Barrels — These brass weights are engineered as direct replacements for the standard beadlock barrels included on your TRX-4MT. Installation is straightforward for anyone familiar with basic RC maintenance, though they must be used with compatible 9781-series or 9881-series beadlock wheels to ensure proper fit and function.
• OEM Traxxas Quality — Manufactured by Traxxas, a brand trusted by RC enthusiasts worldwide for precision engineering and reliability, these weights meet the same exacting standards as every other component bearing the Traxxas name. You're investing in genuine parts designed to work seamlessly with your TRX-4MT platform.

Technical Performance

The engineering behind these brass wheel weights is deceptively simple but profoundly effective. Brass is chosen as the material of construction because it offers superior density compared to standard materials, allowing Traxxas designers to achieve the target 31-gram weight per wheel in a compact form factor that fits within the wheel assembly without compromising aesthetics or creating packaging issues. The weights are precision-engineered to replace the standard beadlock barrels completely, meaning installation involves no additional modifications or workarounds—simply remove the old barrels and install the new weights using the same mounting system your truck already features. The 31-gram specification per wheel has been carefully calculated through extensive testing to deliver meaningful performance improvements in anti-rollover stability and climbing capability without introducing negative characteristics like sluggish acceleration or reduced agility in tight turning situations. When installed on TRX-4MT models equipped with compatible 9781-series or 9881-series beadlock wheels, the weights integrate seamlessly into the existing suspension geometry and drivetrain, ensuring that all other performance characteristics of your truck remain optimised. The brass construction guarantees durability through countless driving sessions, whether you're bashing casually in your garden or undertaking intensive rock-crawling adventures in challenging outdoor environments across the UK.

What's in the Box

• Two brass wheel weights, each 31 grams

What You Need to Complete

• TRX-4MT 1/18 scale monster truck
• 9781-series or 9881-series beadlock wheels and tyres (for compatibility)
• Basic RC maintenance tools for installation

Frequently Asked Questions

• Will these brass wheel weights fit my TRX-4MT monster truck? — Yes, the Traxxas Wheel weights brass (31 grams per wheel) TRX9880 are specifically engineered for TRX-4MT 1/18 models, including the 1979 Chevrolet K10 and 1979 Ford F-150 variants. These weights are designed as direct replacements for standard beadlock barrels and must be paired with 9781-series or 9881-series beadlock wheels for proper fit and function.
• How much weight do these add to my truck? — Each brass weight adds 31 grams to the lowest point of your vehicle. When installed as a pair, you're adding 62 grams total to one wheel location. Many enthusiasts purchase multiple pairs to outfit all four wheels, adding 124 grams in total weight. This mass is positioned strategically at the wheels to lower your truck's centre of gravity and improve stability.
• What performance improvements will I notice? — The primary benefits are improved anti-rollover stability—your truck will be significantly less likely to tip during aggressive cornering and high-speed manoeuvres—and superior rock-climbing capability. The additional weight at the wheels increases ground contact and traction, allowing your TRX-4MT to climb steeper obstacles and handle more challenging terrain. You'll also notice improved overall vehicle balance and more planted feel during dynamic driving.
• Are these compatible with all TRX-4MT wheels and tyres? — These brass weights replace standard beadlock barrels and must be used specifically with 9781-series or 9881-series beadlock wheels. If your current wheels are a different variant, you will need to upgrade to compatible wheels for these weights to function correctly. The 9867 wheels and tyres specification also applies to TRX-4MT compatibility.
• Do these weights require any modification to install? — No, these brass weights are engineered as direct drop-in replacements for your truck's standard beadlock barrels. If you're comfortable performing basic RC maintenance like wheel removal and installation, you can fit these weights in just a few minutes without any special tools or modifications.
• Will adding these weights affect my truck's acceleration? — The 31-gram weight per wheel has been carefully engineered by Traxxas to provide meaningful stability benefits without introducing detrimental effects like sluggish acceleration or reduced manoeuvrability. The performance improvement in handling characteristics will outweigh any minimal impact on acceleration in practical driving scenarios.
• Are brass weights better than standard plastic alternatives? — Yes, brass is superior for precision RC weights because it offers greater density than plastic, ensuring consistent performance over extended use without degradation. Plastic weights can become brittle and lose dimensional accuracy over time, but brass maintains its properties indefinitely, making these weights a sound long-term investment.
• How do these weights improve rock-climbing performance? — By positioning additional mass at the wheels, the weights increase ground contact pressure and traction. This allows your TRX-4MT to grip challenging surfaces more effectively, enabling you to climb steeper inclines and negotiate obstacles that would otherwise be beyond your truck's capabilities. The improved weight distribution also helps maintain tyre contact during extreme climbing angles.

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 Traxxas Wheel weights, brass (31 grams per wheel) (2 pcs) TRX9880 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.