RC Overhaul Rear Portal Axle Mount Black Brass TRX-4 TRX-6 G-RCO-TRX023

Overview

The RC Overhaul Rear Portal Axle Mount in black brass is a premium performance upgrade designed for serious RC crawler enthusiasts in the UK who demand both style and functionality. If you're running a Traxxas TRX-4 or TRX-6 model and want to improve stability on challenging terrain whilst adding a touch of visual sophistication to your rig, this is the upgrade you've been waiting for. These brass axle mounts deliver real-world performance benefits combined with the striking appearance that comes from precision-machined black brass construction with milled edges that reveal the gorgeous brass underneath.

Whether you're tackling rocky trial courses, navigating technical obstacles, or simply want your RC crawler to stand out from the crowd, the RC Overhaul rear portal axle mounts offer an excellent balance of aesthetics and engineering. The added weight of 22 grams per side might seem modest, but it translates directly into improved stability and traction when you need it most. This is a chassis tune-up option that transforms not just how your RC car performs, but how it looks doing it. For UK RC enthusiasts seeking quality upgrades that make a genuine difference to their crawling experience, this is a smart investment.

RC crawler upgrades like these are essential for anyone serious about maximising their TRX-4 or TRX-6's potential. By replacing the standard plastic part 8256 with these premium brass components, you're not just getting better looks – you're getting engineering that delivers measurable performance improvements on the sort of difficult terrain that separates casual bashers from dedicated trail runners.

Key Features

• Black Brass Construction — The use of brass rather than plastic provides superior strength and durability whilst adding weight that significantly improves axle stability, particularly important when navigating rocky or technical trial terrain where weight distribution directly affects grip and traction.
• Precision-Milled Edges — The milled edges reveal the natural brass underneath the black coating, creating an attractive two-tone finish that catches light beautifully and gives your crawler a premium, purpose-built appearance that stands out at the track or on the trail.
• RC Overhaul Branding — Each mount features the RC Overhaul logo as part of the design, providing authentic branding that identifies your rig as professionally upgraded and shows you're using quality aftermarket components from a recognised manufacturer.
• Weight Enhancement — Each axle mount adds approximately 22 grams of weight, delivered to the optimal location for improved stability during technical climbs, descents, and cornering on difficult trials where weight transfer and balance are critical to success.
• Direct Replacement Design — These mounts are engineered to replace the standard plastic part 8256 found on compatible TRX-4 and TRX-6 models, meaning installation is straightforward for anyone with basic RC maintenance experience, and fitting hardware is included.
• Performance-Focused Engineering — Every aspect of these mounts has been designed with performance in mind, from the material selection through to the weight distribution, making them an ideal choice for serious RC crawler owners rather than casual hobbyists.

Technical Performance

The RC Overhaul Rear Portal Axle Mount represents a thoughtful approach to RC crawler upgrades. By moving away from plastic construction towards solid brass, RC Overhaul has created components that deliver measurable improvements in axle stability and overall vehicle handling on challenging terrain. The 22-gram weight addition per side might initially seem counterintuitive, but in RC crawling, strategic weight placement directly improves traction and stability, particularly when navigating steep inclines, rocky obstacles, and technical sections where weight distribution affects how the vehicle maintains contact with the ground. The black brass material offers superior rigidity compared to plastic alternatives, reducing flex and improving predictability in how the vehicle responds to terrain inputs. The precision milling that reveals brass beneath the black coating isn't merely decorative – it demonstrates the manufacturing quality and attention to detail that goes into each component. These are the sorts of upgrades that experienced UK RC crawler enthusiasts choose when they're serious about maximising their vehicle's capabilities and aren't willing to compromise on either performance or aesthetics.

What's in the Box

• Left Rear Portal Axle Mount (black brass, approximately 22g)
• Right Rear Portal Axle Mount (black brass, approximately 22g)
• Fitting Hardware

Compatibility

The RC Overhaul Rear Portal Axle Mount is designed to fit a comprehensive range of Traxxas TRX-4 and TRX-6 models. Compatible vehicles include the Traxxas 1/10 TRX4 Nissan Pathfinder SE-V6 3S 4x4 RTR (available in Red and Silver), the Traxxas TRX-4 Chevrolet K10 Cheyenne High Trail Edition (Black, Metallic Silver, Metallic Blue, Red, and Metallic Copper colour options), the Traxxas TRX-4 Ford F-150 Ranger XLT High Trail Edition in 1/10 scale (Blue, Brown, and Black finishes), the Traxxas TRX-4 1972 Chevrolet K5 Blazer High Trail Edition available in Blue and Red, the Traxxas TRX-4 1979 Chevy Blazer in 1/10 4x4 Electric configuration (Black and Red with Clipless Body), the Traxxas TRX-4 Unassembled Chassis Kit with Clipless design, the Traxxas TRX-4 2021 Ford Bronco 1/10 Crawler (Orange, Black, Red, and White), the Traxxas 1/10 TRX-4 Defender 4WD RTR with Clipless Mounting (Green, Sand, Red, and Silver options), the Traxxas TRX-4 Sport Hightrail Edition in Metallic Blue, the Traxxas TRX4 Sport 1/10 4X4 Electric All-Terrain Crawler Truck with Clipless Body (Blue and Gray), the Traxxas TRX-4 Sport with Deep-Terrain Traxx and Clipless Body in Orange, and the Traxxas TRX-6 Mercedes-Benz G 63 AMG XL-5 1/10 6x6 RTD Crawler (Silver and Black), plus the Traxxas TRX-6 Ultimate RC Hauler with Winch in Black. This wide compatibility range makes these mounts an excellent universal upgrade for TRX-4 and TRX-6 owners across the UK.

Frequently Asked Questions

• Will these brass axle mounts improve my RC crawler's performance? — Yes, absolutely. The added weight of 22 grams per side improves stability on difficult terrain by optimising weight distribution across the axles. This translates to better traction during climbs, more predictable handling through technical sections, and improved overall control when navigating rocky trails. RC crawler owners across the UK find that strategic weight additions at the axles deliver noticeable real-world performance improvements.
• Are these mounts difficult to install? — No, installation is straightforward for anyone with basic RC maintenance experience. These mounts are designed as direct replacements for the standard plastic part 8256, and all necessary fitting hardware is included in the box. Most users report installation taking just a few minutes with basic tools.
• Why choose brass over plastic? — Brass offers several advantages over plastic: superior strength and rigidity, which means less flex under load and more predictable handling characteristics, better durability for long-term use, and the ability to hold weight in the optimal location for improved axle stability. Additionally, brass construction simply looks and feels more premium, which many serious RC enthusiasts appreciate.
• Will these fit my TRX-4 or TRX-6? — The RC Overhaul Rear Portal Axle Mount is compatible with an extensive range of TRX-4 and TRX-6 models. These mounts replace plastic part 8256, which is fitted to most modern Traxxas crawler models in both ranges. Check the full compatibility list above or contact our team if you're unsure about your specific model.
• How much weight do they add? — Each mount adds approximately 22 grams, meaning a total addition of 44 grams to the rear axle assembly. This weight is strategically positioned to improve stability and traction without creating handling issues or requiring other suspension adjustments.
• Do I need to adjust my suspension after fitting these? — In most cases, no suspension adjustment is necessary. The weight addition is modest and strategically positioned to improve performance naturally. However, if you're already running a highly tuned setup, you may wish to fine-tune spring rates or shocks to suit your particular terrain and driving style.
• What makes RC Overhaul products stand out? — RC Overhaul focuses on quality manufacturing, attention to detail, and genuine performance improvements. Their products feature thoughtful engineering, premium materials, and precision finishing. These rear portal axle mounts exemplify this approach with their beautiful milled finish and performance-focused weight placement.

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 RCO Rear Portal Axle Mount, Blk Brass, TRX4/6 G-RCO-TRX023 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.

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.
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