Team Corally 64 DP Pinion Gear 21 Teeth Hardened Steel 3.17mm Shaft C-71321

Overview

The Corally 64 DP Pinion Short Hardened Steel 21 Teeth (C-71321) is a precision-engineered gear component designed for RC car enthusiasts across the UK who demand performance and reliability. Whether you're a competitive racer, weekend basher, or dedicated hobbyist looking to optimise your RC car's performance, this pinion gear represents the kind of high-quality component that separates a well-tuned machine from an average one. Team Corally has built a reputation for manufacturing gears that deliver exceptional durability and precise concentricity, and this 21-tooth pinion exemplifies that commitment to excellence.

This pinion gear is specifically engineered for 64 DP (Diametral Pitch) systems, making it compatible with a wide range of modern RC cars that utilise 64 DP drivetrain architecture. The 21-tooth configuration provides a balanced gear ratio suitable for various track conditions and driving styles, allowing you to achieve the perfect setup for your specific needs. If you're shopping for RC car gears in the UK, you'll find that quality matters when it comes to drivetrain components, and the Corally C-71321 delivers the precision that serious RC car enthusiasts expect.

Manufactured in Europe using special hardened steel and precision CNC machining, this pinion gear ensures vibration-free operation and consistent performance lap after lap. Every unit is clearly marked with its tooth count for quick and easy identification during setup changes, a thoughtful detail that demonstrates Corally's attention to practical user experience alongside engineering excellence.

Key Features

• Special Hardened Steel Construction — The pinion is manufactured from specially hardened steel that provides exceptional toughness and durability, ensuring the gear teeth resist wear and stripping even under demanding racing conditions or aggressive bashing sessions. This material choice means your investment will deliver reliable performance over an extended lifespan.
• CNC Cut Teeth with Perfect Tooth Shape — Each tooth is precisely cut using CNC machinery to achieve perfect tooth geometry and absolute concentricity, which eliminates runout and vibration that can compromise handling and acceleration. This precision engineering translates directly into smoother power delivery and more predictable driving characteristics on any RC car track.
• Ultra-True Running for Vibration-Free Operation — The manufacturing process ensures ultra-precise tolerances and ultra-true running characteristics, meaning you'll experience silent, smooth gear engagement without the annoying noise and vibration that comes from inferior pinion gears. This contributes to better overall performance and a more enjoyable driving experience.
• 64 DP Gear Pitch Standard — The 64 DP specification places this pinion within a widely supported standard used across numerous modern RC car platforms, ensuring compatibility with many popular vehicles and allowing you to expand your gear ratio options as your RC hobby develops.
• 21 Tooth Configuration — The 21-tooth count offers a versatile gear ratio suitable for medium-speed applications and general-purpose driving, making it an excellent choice for both racing and recreational use across different track layouts and terrain types.
• 3.17mm Motor Shaft Compatibility — Designed specifically for 3.17mm diameter motor shafts, this pinion ensures a secure, precise fit on compatible brushless and brushed motors, preventing slippage and ensuring efficient power transmission from motor to drivetrain.
• Tooth Number Marking for Quick Identification — Each pinion is clearly marked with its tooth number, allowing you to quickly identify the correct gear during setup changes or maintenance, saving time and eliminating confusion when swapping between different gear ratios.
• Compact Short Design — The short profile of this pinion makes it suitable for tight motor mounting spaces and compact drivetrain layouts, providing versatility across different RC car designs and chassis architectures.

Technical Performance

The Corally 64 DP Pinion represents the pinnacle of gear manufacturing technology applied to RC car components. Built from special hardened steel and produced using precision CNC machining, this pinion delivers the kind of performance that competitive RC enthusiasts demand. The 21-tooth configuration works in conjunction with matching spur gears to establish your vehicle's gear ratio, directly affecting acceleration, top speed, and overall performance characteristics. With a shaft diameter of 3.17mm, this pinion fits directly onto standard brushless motor shafts found in most modern RC cars available in the UK market. The 4mm tooth width and 9mm overall gear length provide structural rigidity whilst maintaining compatibility with standard RC car drivetrain spacing. The 1.5mm hex key size for gear retention nuts is consistent with industry standards, making installation straightforward with common tools already in your RC hobby toolkit. The absolute concentricity achieved through CNC manufacturing means minimal runout, which translates to smooth engagement with your spur gear and reduced drivetrain noise. This precision is particularly important in competitive racing scenarios where smooth power delivery and predictable handling can mean the difference between winning and losing races. Whether you're running your RC car on carpet, tarmac, or off-road surfaces across the UK, this pinion gear will maintain consistent performance without the chattering, vibration, or power loss associated with lower-quality alternatives.

What's in the Box

• 1x Corally 64 DP Pinion Short Hardened Steel 21 Teeth (C-71321)
• Gear clearly marked with tooth count for easy identification

Frequently Asked Questions

• What does 64 DP mean in RC car gearing terminology? — DP stands for Diametral Pitch, which is a measurement standard that defines the tooth spacing and size of a gear. 64 DP is a fine-pitch standard used in modern RC cars, meaning the teeth are precisely spaced and sized to work with other 64 DP components in your drivetrain. This ensures perfect mesh characteristics and efficient power transmission between your motor and wheels.
• Is this pinion gear suitable for both racing and recreational bashing? — Yes, absolutely. The 21-tooth configuration and hardened steel construction make this pinion suitable for competitive racing applications where precision and durability are essential, as well as recreational bashing where durability under heavy loads matters. The versatility of the 21-tooth ratio means it works well across different driving styles and track conditions found throughout the UK RC car community.
• What motor shafts does this pinion fit? — This pinion is specifically designed for motors with 3.17mm diameter shafts, which is a standard size found on most modern brushless motors used in contemporary RC cars. Ensure your motor has a 3.17mm shaft diameter before purchasing to guarantee proper fit and secure engagement.
• How does the hardened steel construction benefit my RC car? — Hardened steel provides superior resistance to wear, stripping, and tooth damage compared to standard steel or aluminium alternatives. This means your pinion gear will maintain its tooth profile longer, deliver more consistent performance over time, and require less frequent replacement, ultimately saving you money on drivetrain maintenance.
• Can I mix this pinion with spur gears from different manufacturers? — While this pinion is designed to work with any 64 DP spur gear, we recommend using matching Corally gears when possible. Corally's precision manufacturing means their pinions and spur gears are engineered to mesh perfectly together, delivering optimal performance and minimal noise. If mixing brands, ensure all components are genuine 64 DP pitch to avoid compatibility issues.
• What's the difference between this short pinion and a standard-length pinion? — The short design allows for tighter motor mounting spacing and is compatible with more compact RC car chassis layouts. This makes it ideal for cars with restrictive motor bay designs where standard-length pinions might not fit. If your RC car has tight motor spacing, the short profile ensures you can still achieve your desired gear ratio.
• How do I identify if this is the right pinion for my RC car? — You need to verify two things: first, your RC car uses 64 DP gearing (check your vehicle's specifications or spur gear), and second, your motor has a 3.17mm shaft diameter. If both conditions are met, this pinion is compatible. The marked tooth count makes identification straightforward, and RC Model Shop's team can help confirm compatibility if you're unsure.

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 CORALLY 64 DP PINION SHORT HARDENED STEEL 21 TEETH SHAFT DIA. 3.17MM C-71321 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.