Traxxas Steel CV Driveshaft Assemblies & Drive Cups (4) TRX10850X

Overview

The Traxxas Steel CV Driveshaft Assemblies & Drive Cups (4) TRX10850X represents a significant upgrade for owners of compatible Traxxas RC models seeking enhanced durability and performance. These steel constant velocity shafts are engineered specifically for high-power brushless applications, delivering the ultimate in torque handling and efficient power transfer. Whether you're running a Mini Slash 4X4, Mini Rally VXL, or other compatible Traxxas RC car, these driveshafts are designed to handle the demands of serious brushless motor setups without compromising on reliability.

If you're an experienced RC enthusiast in the UK looking to upgrade your drivetrain components, or a weekend basher who wants peace of mind knowing your RC car can handle maximum power delivery, this is a genuine OEM Traxxas spare part that will serve you well. The inclusion of both front and rear driveshafts plus all necessary drive cups means this is a complete solution for refreshing your driveline. Steel construction means superior strength compared to standard components, making these ideal for high-performance brushless RC vehicles and competitive driving.

As an authorised Traxxas retailer, RC Model Shop stocks genuine OEM parts like the TRX10850X to ensure your RC car runs at peak performance. Whether you're maintaining your fleet or upgrading a single vehicle, these steel CV driveshafts represent proven Traxxas engineering and reliability.

Key Features

• Steel Construction — Unlike standard plastic driveshafts, these are manufactured from steel for superior strength and durability, allowing them to handle the extreme torque outputs generated by high-power brushless motors without breaking or wearing prematurely.
• Constant Velocity Design — The CV (constant velocity) design ensures smooth power delivery and efficient torque transfer from the differential to the wheels, maintaining consistent performance across all driving angles and conditions.
• Snap Ring Axle Security — On the axle side, snap rings securely hold the drive pins in place, providing reliable retention that prevents dangerous back-out during intense driving sessions or high-acceleration runs.
• Heavy-Duty Steel Drive Cups — The set includes four robust steel drive cups that are engineered to slot seamlessly with the large-bore drive pins, creating an extremely durable connection point that resists wear and damage.
• Press-Fit Differential Side Design — Large-bore drive pins are press-fit on the differential side, ensuring a solid mechanical bond that won't slip or separate under high-torque conditions, which is critical for reliable power transmission in brushless RC vehicles.
• Complete Front and Rear Set — This package includes both front and rear driveshafts plus all four drive cups and four screw pins, meaning you can upgrade your entire drivetrain in one purchase rather than buying components separately.
• OEM Traxxas Quality — As an official Traxxas spare part, these components are manufactured to the same exacting standards as original equipment, guaranteeing compatibility and performance with your RC model.

Technical Performance

The TRX10850X steel CV driveshaft assemblies represent Traxxas's answer to the demands placed on modern RC vehicles by powerful brushless motor systems. Steel construction throughout provides substantially greater strength than plastic alternatives, allowing these shafts to transmit the high torque outputs of contemporary brushless motors without flexing, breaking, or wearing excessively. The constant velocity joint design ensures that power is delivered smoothly and evenly regardless of suspension articulation or driving angle, a critical feature for maintaining traction and control on various terrain. The snap rings securing the drive pins on the axle side are a thoughtful engineering detail that prevents mechanical failure caused by vibration or impact, whilst the heavy-duty steel drive cups provide the necessary durability for extended high-performance use. The press-fit assembly on the differential side creates a mechanically sound connection that resists the shearing forces generated during acceleration and cornering. These driveshafts are specifically designed for high-power brushless applications, meaning they excel in RC vehicles equipped with modern brushless motors and suitable ESCs. The complete package includes everything needed to refresh your entire driveline: front driveshaft, rear driveshaft, four steel drive cups, and four screw pins. This makes the TRX10850X an excellent choice for owners of Mini Slash 4X4, Mini Rally VXL, and other compatible Traxxas models seeking to upgrade to more robust drivetrain components or replace worn originals with genuine OEM parts.

What's in the Box

• Front driveshaft (steel CV assembly)
• Rear driveshaft (steel CV assembly)
• Drive cups (4)
• Screw pins (4)

Frequently Asked Questions

• What vehicles are compatible with the Traxxas TRX10850X steel CV driveshafts? — These steel driveshaft assemblies are designed for the Traxxas Mini Rally VXL Ford RS200 (all colour variants) and the Traxxas Mini Slash BL-2S 4X4 RTR Short Course Truck (all colour variants including Yellow, Orange, Pink, and Green). Always check your vehicle model number against the compatibility list before purchasing to ensure proper fitment.
• Are steel driveshafts better than plastic for my RC car? — Yes, steel driveshafts offer significant advantages over plastic alternatives, particularly if you run a high-power brushless motor setup. Steel construction provides superior strength and durability, allowing the driveshafts to handle extreme torque without breaking, and they resist wear far better than plastic. If you regularly drive in demanding conditions or with a powerful brushless system, upgrading to steel is a worthwhile investment.
• What do the snap rings do on the axle side? — The snap rings serve an important safety and durability function by securely retaining the drive pins in place, preventing them from backing out or separating during driving. This is particularly important during high-acceleration runs or when driving on rough terrain where vibration can loosen components. The snap ring design is a proven engineering solution that adds reliability to your drivetrain.
• Can I use these driveshafts with my brushless motor setup? — Absolutely. These steel CV driveshafts are specifically engineered for high-power brushless applications. The robust steel construction and constant velocity design make them ideal for brushless RC vehicles, allowing them to handle the high torque outputs that modern brushless motors generate. This makes them an excellent upgrade for any compatible Traxxas model running a brushless powerplant.
• Do I need to replace all four drive cups or can I replace them individually? — While you can theoretically replace individual cups if only one is damaged, this complete set includes all four cups you need for both front and rear axles, making it the most economical way to refresh your entire driveline at once. Replacing the full set also ensures consistent wear characteristics and performance across all four corners of your RC vehicle.
• What is the difference between constant velocity shafts and standard driveshafts? — Constant velocity (CV) shafts are engineered to maintain consistent power delivery even when the suspension articulates or the wheels are at angles relative to the chassis. Standard driveshafts can experience speed variations under these conditions, potentially causing jerky power delivery. CV shafts provide smoother, more efficient power transmission, which is particularly valuable in high-performance brushless RC applications.

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 Steel CV Driveshaft Assemblies & Drive Cups (4) TRX10850X 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.