Associated CR12 Main Drive Spur Gear Replacement Part AS41035

Overview

The Associated CR12 Main Drive Spur Gear (AS41035) is a genuine replacement part from Associated, engineered to restore your RC car's drivetrain to peak performance. Whether you're an experienced RC enthusiast running your CR12 on the track or a weekend basher pushing your RC car UK to its limits, wear and tear on drivetrain components is inevitable. This authentic spur gear is designed specifically for the main drive position on compatible Associated CR12 models, offering a straightforward way to maintain smooth, consistent drivetrain operation when the original spur gear becomes worn or damaged.

If you're serious about keeping your RC car in top condition, investing in genuine replacement parts like this spur gear is essential. RC hobbyists across the UK understand that proper maintenance isn't just about longevity—it's about preserving the responsive handling, reliable gear mesh, and consistent performance that makes RC driving enjoyable. The CR12 is a proven platform, and pairing it with genuine Associated spares ensures you're maintaining the quality engineering that made the original design so respected.

Built to match the original specification precisely, this spur gear helps maintain reliable gear mesh with the pinion and supports consistent performance during regular running and maintenance cycles. Installation is straightforward for anyone with basic RC maintenance knowledge, though as with any drivetrain service, checking gear mesh and general drivetrain alignment during installation is recommended for best results.

Key Features

• Genuine Associated Component — This is an authentic Associated replacement part, not an aftermarket alternative, ensuring it meets the exact specifications and tolerances required for your CR12 to perform as intended.
• Main Drive Position Compatibility — Specifically engineered for the main drive spur position on associated CR12 models, meaning it integrates perfectly with your existing drivetrain without fitment issues or compromises to performance.
• Restores Drivetrain Smoothness — A worn or damaged spur gear creates inconsistent power delivery, noise, and eventually drivetrain failure; this replacement gear restores the smooth, efficient operation your RC car needs for reliable handling and acceleration.
• Maintains Pinion Mesh Quality — Proper gear mesh between the spur and pinion is critical for efficient power transfer and longevity; this part ensures that critical interface remains in specification.
• Supports Consistent Performance — Whether you're running casually or pushing your RC car to its limits, a functioning drivetrain is fundamental to predictable, repeatable performance and reliability during both regular running and maintenance cycles.
• Straightforward Replacement — Installing a spur gear is one of the most accessible drivetrain upgrades and maintenance tasks, making this an ideal part for RC enthusiasts who want to maintain their own vehicles.

Technical Performance

The Associated CR12 Main Drive Spur Gear is engineered to exacting standards that match the original equipment specification. The spur gear is a critical component in your RC car's transmission system, transferring power from the motor's pinion gear to the wheels via the drivetrain. Over time, teeth on the spur gear can wear, strip, or become damaged from impact or excessive load, resulting in poor gear mesh, drivetrain noise, and eventually loss of power delivery. This genuine replacement is manufactured to the same tolerances and material specifications as the original, ensuring it performs identically to what Associated designed for the CR12 platform. During installation, checking gear mesh—the relationship between spur and pinion tooth contact—is essential; proper mesh prevents future wear, reduces noise, and maximises drivetrain efficiency. This gear works seamlessly with the rest of your CR12's drivetrain system, supporting the reliable, consistent performance that makes this platform a trusted choice for RC enthusiasts across the UK.

What's in the Box

• Associated CR12 Main Drive Spur Gear (AS41035) — one unit

Frequently Asked Questions

• Is the Associated CR12 Main Drive Spur Gear AS41035 a genuine part? — Yes, this is an authentic Associated replacement part manufactured to the original specification. When maintaining your RC car, using genuine spares ensures you're getting components engineered to work perfectly with your vehicle, rather than aftermarket alternatives that may not match tolerances precisely.
• What happens if my spur gear is worn or damaged? — A worn spur gear creates several problems: inconsistent power delivery, noise and grinding sounds during acceleration, poor gear mesh with the pinion, and eventually complete drivetrain failure. Replacing a worn spur gear restores smooth operation and prevents further damage to related components like the pinion and differential.
• How do I know if I need to replace my spur gear? — Signs of spur gear wear include visible tooth damage or stripping when you inspect the gear, grinding or whining noises coming from the drivetrain, hesitation or loss of power during acceleration, or loose movement when you manually check the gear. If you notice any of these symptoms, replacement is recommended.
• Do I need to replace the pinion gear at the same time? — It's good practice to inspect your pinion gear during any drivetrain service. If both spur and pinion show wear, replacing both ensures optimal gear mesh quality and longevity. However, if the pinion appears to be in good condition, replacing the spur gear alone may be sufficient.
• What is gear mesh and why does it matter? — Gear mesh is the contact between the teeth of the spur and pinion gears. Proper mesh is critical for efficient power transfer, reduces noise, minimises wear, and ensures responsive handling. During installation, adjusting the motor pod or slipper clutch to achieve correct mesh ensures your RC car performs reliably.
• Is this suitable for beginners? — Replacing a spur gear is one of the most accessible drivetrain maintenance tasks. If you've never done it before, basic RC tools and a manual are all you need. Many beginners find spur gear replacement a confidence-building introduction to hands-on RC maintenance.
• Will this work with other Associated models? — This spur gear is specifically designed for Associated CR12 models. Always verify compatibility before purchasing spares; using the wrong size gear can result in poor fitment and performance issues. Check your manual or contact our team if you're unsure about compatibility with your specific model.
• How often should I replace my spur gear? — Spur gear lifespan depends on your running style, surface conditions, and maintenance practices. Gentle, regular running with proper lubrication can extend gear life significantly. Aggressive bashing, running on abrasive surfaces, or poor maintenance accelerates wear. Inspect regularly and replace when you notice damage or performance changes.

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 ASSOCIATED CR12 MAIN DRIVE SPUR GEAR AS41035 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.