Overview
The RC4WD Medium Offset Hub for Racing Monster Truck Beadlock Wheels (Flat Hex) Z-S1937 is a precision-engineered component designed for serious RC enthusiasts who demand the very best performance from their monster truck setups. Whether you're building a competitive racing rig or upgrading an existing RC monster truck, these hubs provide the critical interface between your 12mm hex axles and RC4WD beadlock wheels with absolute reliability and professional-grade finishing. Available at RC Model Shop, this component represents the pinnacle of RC4WD's engineering expertise and is essential for anyone looking to build or upgrade a high-performance monster truck in the UK RC hobby market.
Monster truck racing has exploded in popularity across the UK, with dedicated RC enthusiasts constantly seeking ways to optimise their setups for maximum performance and durability. The medium offset configuration offered in the Z-S1937 is the gold standard for racing monster truck applications, chosen by competitors and weekend bashers alike because it provides the perfect balance between wheel stance and handling characteristics. These hubs are not just functional components; they're precision tools that help translate your driving skills into consistent, competitive performance on the track or trail.
RC Model Shop stocks the genuine RC4WD Z-S1937 hubs because we understand what serious RC car enthusiasts need: authentic products from trusted manufacturers, backed by expert knowledge and genuine customer support. If you're serious about your RC monster truck, you need components that are equally serious about performance and durability.
Key Features
- CNC Machined Billet Aluminium Construction — Every hub is precision-machined from solid billet aluminium, ensuring absolute concentricity and durability that cast alternatives simply cannot match. CNC machining creates components with tolerances so tight that they deliver consistent performance lap after lap, race after race, making them the preferred choice for competitive monster truck racing.
- Black Anodised Finish — The professional-grade anodising process protects the aluminium from corrosion and wear whilst providing a striking race-ready appearance that looks fantastic on any monster truck. This protective coating ensures the hubs maintain their performance characteristics even after extended use in demanding conditions.
- 12mm Hex Interface (Flat Hex) — The flat hex design provides a secure, slip-free connection to your 12mm hex axles, eliminating the risk of wheel creep or slippage during aggressive driving. This is the industry standard for reliable power transfer and is essential for maintaining consistent handling through corners and over obstacles.
- Medium Offset Geometry — The medium offset configuration is specifically engineered for racing monster truck setups, offering the optimal balance between tyre clearance, suspension geometry, and handling characteristics that competitive drivers demand. This offset is favoured throughout the RC racing community for its proven performance benefits.
- Lightweight Design — At just 11.5g per hub, these components contribute minimal unsprung weight to your monster truck, improving suspension responsiveness and reducing the energy required to accelerate and decelerate. Lower weight means better overall vehicle dynamics and quicker handling.
- Generous Diameter and Width Specifications — With an outer diameter of 27.0mm and width of 21.4mm, these hubs provide excellent structural rigidity and load distribution, ensuring reliable performance even during the most demanding racing conditions and big air jumps.
Technical Performance
The RC4WD Z-S1937 Medium Offset Hub represents the pinnacle of precision engineering for monster truck racing applications. Manufactured from billet aluminium using CNC machining, these hubs are produced to exacting tolerances that ensure perfect concentricity and reliability. The black anodised finish provides corrosion resistance and durability, protecting the component through hundreds of hours of use. With dimensions of 27.0mm outer diameter and 21.4mm width, combined with a weight of just 11.5g each, these hubs strike the perfect balance between strength and minimising unsprung mass. The 12mm flat hex interface ensures a secure, slip-free connection to standard RC4WD 12mm axles, which is critical for reliable power transmission during aggressive driving. The medium offset geometry is engineered specifically for racing monster truck setups, making these hubs the ideal choice for competitors and dedicated enthusiasts who understand that component quality directly impacts on-track performance and consistency. Whether you're running 2.8-inch tyres or planning a full monster truck build, these hubs deliver the performance and durability that serious RC drivers expect.
What's in the Box
- 2x Medium Offset Hub for Racing Monster Truck Beadlock Wheels (Flat Hex)
What You Need to Complete
- RC4WD 12mm Axle Wheel Hexes (Z-S0239) — to complete the full hex interface system
- RC4WD Monster Truck Wheels for 2.8" Tyres with Beadlock Rings (Z-W0282) — compatible beadlock wheels to mount on these hubs
- Additional hubs — you will need to order 2 sets of this item (4 hubs total) for a complete truck build
Frequently Asked Questions
- What is a medium offset hub and why does it matter for monster trucks? — An offset hub changes the wheel's position relative to the axle, affecting tyre clearance, suspension geometry, and handling balance. The medium offset in the Z-S1937 is specifically engineered for racing monster truck setups, providing the optimal balance that competitive drivers prefer. This offset geometry has been proven through countless hours of racing to deliver superior handling characteristics compared to zero or narrow offsets.
- How many hubs do I need for a complete monster truck? — Monster trucks require four wheels, which means you will need to order 2 sets of this product (4 hubs total) to equip your entire vehicle. RC Model Shop supply them in pairs, so ordering two pairs gives you the complete set needed for your build.
- Are these hubs compatible with my existing RC4WD wheels? — Yes, these hubs are specifically designed to work with RC4WD Monster Truck Wheels for 2.8" Tyres with Beadlock Rings (Z-W0282), and they interface with RC4WD 12mm Axle Wheel Hexes (Z-S0239). Check your axle size is 12mm flat hex before purchasing to ensure compatibility.
- What makes CNC machined billet aluminium better than cast alternatives? — CNC machined billet aluminium is manufactured from solid material with computer-controlled precision, creating components with tighter tolerances and superior strength. Cast alternatives are made by pouring molten metal into moulds, which often results in porosity and inconsistent dimensions. For racing applications where consistency and reliability are critical, CNC machined components deliver measurably better performance.
- Will the black anodising scratch or wear off? — The anodised finish is durable and designed to withstand the rigours of racing and bashing, but like any protective coating, it can develop marks with heavy use. This is purely cosmetic and does not affect the structural integrity or performance of the hub. The anodising primarily protects the underlying aluminium from corrosion.
- Are these hubs suitable for beginners? — These hubs are designed for anyone building or upgrading a monster truck with 12mm hexes and RC4WD beadlock wheels. Installation is straightforward if you have basic RC car building knowledge. However, they're primarily marketed towards racing and competitive users who understand the importance of precision components in their setups.
- What is the weight saving compared to other hubs? — At just 11.5g per hub, the Z-S1937 is engineered for minimal weight whilst maintaining structural strength. This lightweight design reduces unsprung mass, improving suspension responsiveness and overall vehicle dynamics — critical factors in competitive racing where every gram matters.
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 RC4WD MEDIUM OFFSET HUB FOR RACING MONSTER TRUCK BEADLOCK WHEELS (FLAT HEX) Z-S1937 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.
- Product Type: Medium Offset Hub for Racing Monster Truck Beadlock Wheels
- Brand: RC4WD
- Model Number: Z-S1937
- Construction Material: CNC Machined Billet Aluminium
- Finish: Black Anodised
- Hex Interface: 12mm Flat Hex
- Outer Diameter: 27.0mm (1.06 inches)
- Width: 21.4mm (0.84 inches)
- Weight per Hub: 11.5g (0.41 ounces)
- Offset Type: Medium Offset
- Quantity in Box: 2x Medium Offset Hubs
- Compatible Axles: RC4WD 12mm Axle Wheel Hexes (Z-S0239)
- Compatible Wheels: RC4WD Monster Truck Wheels for 2.8" Tyres with Beadlock Rings (Z-W0282)
- Barcode: 639302597217
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.
