RC Overhaul C Hubs Black Brass Castor Blocks for Traxxas TRX-4M G-RCO-TRX002

• Part Number: G-RCO-TRX002
• Brand: RC Overhaul
• Product Type: Castor Blocks / C Hubs
• Colour: Black Brass
• Weight per Hub: Approximately 8g
• Material: Black-finished Brass
• Finish: Chamfered edging
• Compatible Vehicles: Traxxas TRX-4M Ford Bronco 1/18 RTR 4x4 Trail Truck (all colours), Traxxas TRX-4M Land Rover Defender 1/18 RTR 4x4 Trail Truck (all colours), Traxxas TRX-4M Chevrolet K10 1/18 RTR High Trail Truck (all colours), Traxxas TRX-4M Ford F-150 1/18 RTR High Trail Truck (all colours), Traxxas TRX-4MT K10 1/18 Monster Truck (all colours), Traxxas TRX-4MT F-150 1/18 Monster Truck (all colours)
• Replaces: Traxxas standard part 9732 castor blocks
• Contents: Left castor block, Right castor block, 4 x Pivot bushes, Replacement hardware
• EAN Code: 5055320228936
• Tune-Up Type: Chassis upgrade
• Installation: Direct replacement, no modification required

Overview

The RC Overhaul C Hubs Black Brass Pr TRX-4M (G-RCO-TRX002) are precision-engineered castor blocks designed to elevate both the performance and appearance of your Traxxas TRX-4M RC crawler. Whether you're a seasoned RC enthusiast exploring upgrades for your trail truck or a dedicated hobby builder looking to enhance handling characteristics, these machined brass components deliver measurable improvements in vehicle dynamics whilst adding a striking aesthetic upgrade. The black brass construction with chamfered edging creates a premium look that catches light beautifully, transforming the front end of your RC truck with professional-grade components that set it apart from standard factory parts.

These castor blocks replace the factory-standard Traxxas part 9732, making them an ideal upgrade for any TRX-4M Ford Bronco, Land Rover Defender, Chevrolet K10, or Ford F-150 in the 1/18 scale range, as well as the TRX-4MT monster truck variants. If you're serious about improving your RC car's trail performance whilst maintaining that essential aesthetic quality, these are the precision-machined upgrade components you've been searching for. Designed by RC Overhaul, a brand trusted throughout the UK RC community, these C hubs represent genuine engineering improvement rather than cosmetic-only upgrades.

What makes these castor blocks particularly effective is their strategic weight placement and construction quality. By adding approximately 8 grammes per side where it genuinely matters—in the front steering assembly—you gain improved vehicle stability and better weight distribution for crawling and trail work. The brass material selection isn't arbitrary; brass offers the perfect balance of rigidity, durability and aesthetic appeal that aluminium alone cannot match, especially when finished in black against the natural metallic brass contrast.

Key Features

• Precision-Machined Black Brass Construction — Each castor block is meticulously machined from black-finished brass, providing superior rigidity and durability compared to standard plastic castor blocks whilst delivering an unmistakable premium appearance that transforms the front end of your TRX-4M.
• Strategic Weight Addition of 8g Per Hub — The approximately 8 gramme weight added per castor block is positioned precisely where it benefits vehicle handling most, improving stability during trail crawling and enhancing weight distribution across the front axle assembly for better traction and control.
• Chamfered Edging for Premium Aesthetics — The carefully executed chamfered edges on each component create a refined, professional finish that showcases the natural brass colour contrast against the black finish, elevating the visual quality of your RC truck significantly.
• Compatible with Black Brass Steering Knuckles — These castor blocks pair perfectly with the optional RC Overhaul Black Brass Steering Knuckles (part number RCO-TRX008), allowing you to create a complete coordinated black brass front-end upgrade for maximum visual impact and performance synergy.
• Complete Hardware Package Included — You receive everything necessary for installation, including left and right castor blocks, four pivot bushes for smooth articulation, and all required replacement hardware to ensure a straightforward upgrade process.
• Direct Factory Part Replacement — These components are engineered as a direct replacement for Traxxas standard part number 9732, ensuring perfect fitment on all compatible TRX-4M variants without modification or adaption required.
• Improved Handling and Geometry — The upgraded castor block design enhances your vehicle's handling characteristics by optimising steering geometry and improving the precision of front-end articulation, particularly noticeable during technical trail work and rock crawling.

Technical Performance

The RC Overhaul C Hubs Black Brass Pr TRX-4M represent a meaningful engineering upgrade over factory-standard plastic castor blocks. Manufactured from precision-machined brass and finished in black, these components add approximately 8 grammes per side to the front steering assembly, strategically increasing unsprung weight where it delivers genuine performance benefits rather than compromising overall vehicle dynamics. The brass material selection provides superior rigidity and vibration dampening compared to plastic alternatives, resulting in more consistent steering geometry during articulation and improved response on rocky, uneven terrain typical of trail crawling. The machined construction ensures precise tolerances that maintain steering accuracy and feel, critical factors in competitive rock crawling and technical obstacle navigation. At 8 grammes per hub, the weight addition is substantial enough to meaningfully improve stability without creating excessive unsprung weight that would compromise suspension responsiveness. The inclusion of four pivot bushes ensures smooth articulation and prevents binding or chatter during extreme suspension articulation, essential for maintaining control during challenging trail conditions. These castor blocks are engineered specifically for the Traxxas TRX-4M platform, ensuring perfect geometric alignment with the vehicle's steering linkage and suspension design, optimised for the unique demands of 1/18 scale scale trail crawling and off-road exploration across the diverse UK terrain.

What's in the Box

• Left castor block (C hub)
• Right castor block (C hub)
• Four pivot bushes
• Replacement hardware

Frequently Asked Questions

• Will these C hubs fit my Traxxas TRX-4M RC truck? — Yes, these RC Overhaul C hubs are engineered specifically as a replacement for Traxxas standard part number 9732 castor blocks and are compatible with all TRX-4M variants, including the Ford Bronco (all colours), Land Rover Defender (all colours), Chevrolet K10, Ford F-150, and TRX-4MT monster truck models. They drop in as a direct replacement with no modification required.
• How much do these castor blocks weigh and where does the weight go? — Each hub adds approximately 8 grammes, with the weight distributed across both the left and right castor blocks. This strategic weight placement in the front steering assembly improves vehicle stability and weight distribution, particularly beneficial for trail crawling and rock obstacle navigation where precise steering geometry matters most.
• What's the difference between these brass castor blocks and the standard plastic ones? — The RC Overhaul brass castor blocks offer superior rigidity, improved vibration dampening, and better steering precision compared to standard plastic Traxxas part 9732 blocks. The precision machining ensures tighter tolerances, meaning your steering geometry remains more consistent during suspension articulation. Additionally, the black brass finish with chamfered edging provides a premium aesthetic upgrade that transforms the appearance of your vehicle whilst delivering genuine performance improvements.
• Can I use these with other RC Overhaul black brass components? — Absolutely. These castor blocks complement the RC Overhaul Black Brass Steering Knuckles (part number RCO-TRX008) perfectly, allowing you to create a cohesive, fully upgraded black brass front-end package with consistent styling and integrated performance benefits across all front-end components.
• Are these suitable for competitive trail crawling? — Yes, these precision-machined brass castor blocks are engineered for serious RC crawling and competitive trail work. The improved steering precision, reduced geometry slop, and strategic weight addition benefit technical obstacle navigation and deliver the responsive handling characteristics demanded by competitive rock crawling enthusiasts throughout the UK.
• What pivot bushes are included and are they easy to install? — The package includes four replacement pivot bushes engineered for smooth articulation without binding or chatter. Installation is straightforward for anyone with basic RC maintenance experience, and the inclusion of replacement hardware means you have everything needed for a complete upgrade without requiring additional parts sourcing.
• Will adding 8 grammes per side affect my suspension geometry negatively? — No. The weight addition is strategically positioned in the castor block assembly where it actually improves stability and handling balance during trail work. The 8 grammes per side is a measured increase that enhances vehicle dynamics rather than creating excessive unsprung weight, particularly on technical terrain where weight distribution matters for traction and control.

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 C Hubs Black Brass Pr TRX-4M G-RCO-TRX002 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.
• 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.
• Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
• 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.
• We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
• As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
• If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
• For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.