Overview
The Fastrax TRX-4M Brass 7mm Hex, Length 6mm Hub Extenders are premium quality upgrade parts designed specifically for the Traxxas TRX-4M family of 1/18 scale RC trail trucks. These hub extenders are an essential upgrade for enthusiasts looking to enhance the performance and handling characteristics of their TRX-4M Ford Bronco, Land Rover Defender, Chevrolet K10, or Ford F-150 models. Whether you're exploring challenging terrain in the UK countryside or pushing your RC crawler to its limits, these brass hub extenders provide the perfect solution for improving your vehicle's dynamics and performance on the trail.
Hub extenders serve a critical role in RC trail truck setup, widening the track width of your vehicle to improve stability, cornering performance, and overall handling. The Fastrax brand is renowned throughout the RC community for manufacturing high-quality upgrade parts and accessories that deliver genuine performance improvements. These brass hub extenders are engineered to exacting standards, ensuring perfect fitment and durability even during extended RC adventures. If you're serious about maximising the potential of your Traxxas TRX-4M RC crawler and want to experience noticeably improved handling and stability, these hub extenders represent a worthwhile investment.
Available exclusively through RC Model Shop, these genuine Fastrax parts are manufactured to the same exacting standards as your original Traxxas components. Whether you're a seasoned RC enthusiast, a competitive crawler pilot, or someone who simply enjoys bashing and exploring with their RC car UK setup, these hub extenders will help you extract maximum performance from your TRX-4M platform.
Key Features
- 7mm Hex Compatibility — These hub extenders feature a 7mm hex drive system, which is the standard fitment for Traxxas TRX-4M vehicles and ensures seamless compatibility with all genuine Traxxas TRX-4M hub components and wheel adaptors, making installation straightforward for any RC enthusiast.
- 6mm Extension Length — The precisely measured 6mm extension length has been engineered to provide optimal track widening for the TRX-4M platform, improving stability during cornering, enhancing weight distribution, and delivering noticeably better handling characteristics without compromising the vehicle's overall balance or manoeuvrability.
- Brass Construction — These hub extenders are manufactured from durable brass material, which offers excellent durability, corrosion resistance, and long-term reliability even in challenging outdoor conditions, whilst maintaining precise tolerances and smooth operation throughout the life of your RC crawler.
- Premium Quality Build — Fastrax components are manufactured to exacting engineering standards, ensuring perfect fitment with your existing TRX-4M components and delivering the performance improvements you expect without any compatibility issues or fitment problems.
- Set of Four — This package includes four hub extenders, providing complete coverage for all four wheels of your TRX-4M vehicle, ensuring consistent performance and handling characteristics across the entire chassis.
- Transmission Upgrade Category — Classified as a transmission tune-up option, these hub extenders contribute to the overall drivetrain geometry and performance characteristics of your TRX-4M, making them an essential part of any serious upgrade strategy.
Technical Performance
The Fastrax TRX-4M Brass 7mm Hex, Length 6mm Hub Extenders represent a carefully engineered solution for enhancing the performance of your 1/18 scale Traxxas TRX-4M trail truck. Manufactured from premium brass material, these extenders provide superior durability and corrosion resistance compared to lower-quality alternatives, ensuring they maintain their performance characteristics even after extended use in various terrain conditions. The 6mm extension length has been precisely calculated to optimise the track width of the TRX-4M platform, resulting in improved stability during high-speed cornering, better weight distribution across all four tyres, and enhanced overall handling dynamics. The 7mm hex drive system ensures perfect compatibility with all standard Traxxas TRX-4M hub components, wheel adaptors, and related drivetrain parts, meaning installation is straightforward and requires only basic RC tools. Whether you're tackling technical rock crawling sections, navigating tight woodland trails, or enjoying high-speed trail bashing across open ground, these hub extenders will help your TRX-4M perform at its absolute best. The brass construction provides excellent longevity and reliability, resisting wear and corrosion far better than cheaper alternatives, making these upgrades a genuine long-term investment in your RC vehicle's performance and durability.
What's in the Box
- Fastrax TRX-4M Brass 7mm Hex Hub Extenders x4
Frequently Asked Questions
- What is the purpose of hub extenders for my TRX-4M RC crawler? — Hub extenders widen the track width of your vehicle, which improves stability during cornering, enhances weight distribution across all four tyres, and delivers noticeably better handling characteristics. For trail driving and crawler work, wider track widths help your TRX-4M maintain better traction and control, particularly on uneven terrain or during technical manoeuvres. Many experienced RC enthusiasts consider hub extenders one of the essential upgrades for maximising their TRX-4M's performance.
- Are these hub extenders easy to install on my Traxxas TRX-4M? — Installation is straightforward for anyone with basic RC tools and experience. The 7mm hex drive system is the standard Traxxas fitting, so these Fastrax extenders slide directly onto your existing hub components without any modification or adaptation required. If you've installed any other TRX-4M upgrade parts before, you'll find these just as simple to fit.
- Will these brass hub extenders work with all TRX-4M models? — Yes, these hub extenders are compatible with the entire Traxxas TRX-4M range, including the Ford Bronco, Land Rover Defender, Chevrolet K10, Ford F-150, and Monster Truck variants. All TRX-4M models use the same 7mm hex hub system, so these extenders will fit perfectly regardless of which TRX-4M model you own.
- Why choose brass construction over other materials? — Brass offers superior durability, excellent corrosion resistance, and outstanding longevity compared to cheaper plastic or lower-quality metal alternatives. Brass components maintain their performance characteristics even after extended use in wet or challenging conditions, making them a genuine investment in your RC vehicle's long-term reliability. Fastrax's use of brass demonstrates their commitment to manufacturing quality upgrade parts that actually deliver measurable performance improvements.
- How many hub extenders are included in this pack? — This package includes four hub extenders, which is the correct quantity for equipping all four wheels of your TRX-4M vehicle with consistent performance and handling characteristics across the entire chassis.
- What makes Fastrax components different from other RC upgrade manufacturers? — Fastrax has built a reputation throughout the RC community for engineering upgrade parts that genuinely improve vehicle performance and reliability. Their components are manufactured to exacting standards, ensuring perfect fitment and durability. Fastrax parts are trusted by serious RC enthusiasts, weekend bashers, and competitive crawler pilots throughout the UK and globally.
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 FASTRAX TRX-4M BRASS 7MM HEX, LENGTH 6MM HUB EXTENDERS (4) FTTX476 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.
- Brand: Fastrax
- Model Number: FTTX476
- EAN Code: 5056135761175
- Product Type: Hub Extenders
- Hex Size: 7mm
- Extension Length: 6mm
- Material: Brass
- Quantity in Pack: 4
- Tune-Up Category: Transmission
- Compatibility: Traxxas TRX-4M Ford Bronco 1/18 RTR 4x4 Trail Truck (all colour variants)
- Compatibility: Traxxas TRX-4M Land Rover Defender 1/18 RTR 4x4 Trail Truck (all colour variants)
- Compatibility: Traxxas TRX-4M Chevrolet K10 1/18 High Trail Truck (all colour variants)
- Compatibility: Traxxas TRX-4M Ford F-150 1/18 High Trail Truck (all colour variants)
- Compatibility: Traxxas TRX-4MT K10 Monster Truck
- Compatibility: Traxxas TRX-4MT F150 Monster Truck
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.
