Overview
The Traxxas TRX10949 Ultra-Heavy-Duty Machined Steel Drive Cup represents the ultimate driveline upgrade for serious RC enthusiasts running extreme 6S brushless power through their X-Series vehicles. This is not a cosmetic upgrade—it is a critical performance component engineered specifically to withstand the brutal forces generated by high-powered RC cars and trucks. Whether you're bashing on rough terrain, launching sky-high jumps, or pushing your vehicle to its limits, this steel drive cup delivers the durability and reliability you need to keep your RC car UK hobby running smoothly without constant maintenance and repairs.
Sledge technology has revolutionised the way modern RC vehicles handle extreme power delivery. The factory standard drive cups found on many ready-to-run RC models simply cannot cope with the punishment of 6S LiPo systems, where explosive acceleration, high-traction cornering, and aggressive driving conditions combine to create intense stress on every drivetrain component. The TRX10949 addresses this weakness head-on with engineering designed specifically for maximum strength and longevity. This is a spare part that transforms your RC experience, eliminating the frustration of repeated drivetrain failures and allowing you to focus entirely on enjoying your vehicle rather than worrying about durability issues.
RC enthusiasts across the UK who demand reliability and performance turn to Traxxas components for good reason. This machined steel drive cup exemplifies Traxxas's commitment to engineering excellence and real-world durability testing. It is not a novelty upgrade or a theoretical improvement—it is a proven component that solves a genuine problem faced by everyone running serious brushless power in their RC monster truck, sand car, or high-performance off-road buggy.
Key Features
- Ultra-Heavy-Duty Machined Steel Construction — This drive cup is manufactured from high-grade, heat-treated steel rather than standard materials, which provides exceptional resistance to deformation and failure under extreme stress. The heat-treatment process hardens the material to prevent rounding out, which occurs when the cup contacts the dogbone joint under high load, a common failure mode in standard components.
- Larger Diameter Design — The drive cup features an enlarged diameter compared to standard factory components, which dramatically increases the contact surface area with the driveshaft. This larger footprint distributes forces more evenly and reduces stress concentration, directly extending the lifespan of your drivetrain and improving overall reliability during intense driving sessions.
- Precision Machining — Each unit is precision machined to exact tolerances, ensuring perfect fitment with compatible driveshafts and eliminating any play or looseness that could compromise performance or cause premature wear. Precision manufacturing is what separates professional-grade components from budget alternatives.
- Heat-Treated for Maximum Strength — The heat-treatment process employed during manufacturing creates a hardened surface that resists the constant grinding and deformation that occurs during high-stress drivetrain operation. This metallurgical enhancement delivers real performance improvements that you will feel through improved durability and reliability over countless hours of driving.
- Compatible with Premium Driveshaft Systems — This drive cup is specifically engineered to work with Traxxas TRX7750X and TRX7896 driveshafts, which are themselves premium components designed for 6S brushless power. The compatibility ensures perfect integration within the complete Sledge driveline system for maximum performance and reliability.
- Individual Unit Sold Separately — The drive cup is sold as a single unit, allowing you to replace worn or damaged components without purchasing an entire driveline assembly. This modular approach saves money and means you only replace what needs replacing.
Technical Performance
The TRX10949 drive cup represents the culmination of Traxxas engineering expertise and real-world testing with extreme 6S brushless power systems. Sledge technology channels explosive 6S brushless power through a properly sized all-steel driveline engineered for maximum strength and long life. The centre drive cups featured in the Sledge driveline system are boot-protected with rubber seals that lock grease inside and keep dirt and debris out, delivering cool-running, long-lasting performance even in the harshest conditions. This drive cup is specifically designed to work within this complete system, supporting the massive steel gears and solid steel driveshafts that transfer brutal power to the wheels. The machined and heat-treated steel construction provides measurably superior performance compared to standard components, with the larger diameter and precision engineering reducing stress concentration points and extending component lifespan significantly. For RC enthusiasts running brushless 6S power in monster trucks, sand cars, and high-performance buggy platforms, this is the genuine engineering solution that eliminates durability concerns and lets you focus on dirt-roosting launches, sky-high jumps, and all-out speed runs without worrying about drivetrain failure.
What's in the Box
- 1x Traxxas TRX10949 Ultra-Heavy-Duty Machined Steel Drive Cup
Frequently Asked Questions
- What vehicles is the TRX10949 drive cup compatible with? — This drive cup is compatible with multiple Traxxas X-Series vehicles including the X-Maxx Belted 4WD Brushless monster truck, X-Maxx Ultimate, X-Monster Chassis, and Traxxas Funco Motorsports Pro Scale 8S 2WD electric sand car. Check your vehicle's specifications to confirm compatibility before purchase.
- Why do I need to upgrade my stock drive cup? — The factory standard drive cups on most RC vehicles cannot withstand the extreme forces generated by 6S brushless power systems, particularly under high-traction conditions and aggressive driving. This ultra-heavy-duty version is specifically engineered for 6S power and will dramatically improve reliability and reduce the frequency of drivetrain repairs and replacements.
- Will this drive cup fit my existing driveshaft? — The TRX10949 is designed specifically for use with Traxxas TRX7750X or TRX7896 driveshafts. If you are using a different driveshaft model, this cup will not be compatible. Always verify your current driveshaft model number before ordering.
- Is this a difficult component to install? — The drive cup is a straightforward replacement component that fits onto your existing driveshaft. Basic RC mechanical knowledge is required for installation. If you are uncomfortable performing maintenance on your RC vehicle, we recommend having it installed by an experienced RC technician.
- What is the difference between this and the standard drive cup? — The TRX10949 features a larger diameter design, premium high-grade heat-treated steel construction, and precision machining, all engineered to resist rounding out from dogbone contact under extreme 6S power. Standard cups lack this engineering and fail much more quickly under similar conditions.
- How often will I need to replace this drive cup? — The ultra-heavy-duty design and heat-treated steel construction deliver exceptional longevity. Frequency of replacement depends on driving intensity and conditions, but this component will last significantly longer than standard alternatives, reducing your overall maintenance costs and downtime.
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 Drive cup, steel, extreme durability (1)/ 3x8mm CS (use only with #7750X & 7896 driveshafts) (machined, heat treated) TRX10949 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.
- Part Number: TRX10949
- Manufacturer: Traxxas
- Product Type: Ultra-Heavy-Duty Machined Steel Drive Cup
- Material: High-grade heat-treated steel
- Construction: Machined and heat-treated
- Drive Cup Size: 3x8mm CS
- Diameter: Larger than standard drive cup
- Compatible Driveshafts: TRX7750X and TRX7896 only
- Power Rating: Designed for 6S brushless power systems
- Feature: Larger diameter design resists rounding out from dogbone contact
- Feature: Boot-protected design (when used in complete Sledge driveline system)
- Feature: Grease-sealed for long-lasting cool-running performance
- Precision Machining: Yes
- Heat Treated: Yes
- Quantity: Sold individually (1 unit)
- Compatible Vehicles: Traxxas X-Maxx Belted 4WD Brushless RTR 8S Monster Truck, Traxxas X-Maxx Ultimate, Traxxas X-Monster Chassis, Traxxas Funco Motorsports Pro Scale 8S 2WD Electric Sand Car
- EAN Code: 020334043948
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.
