Team Corally M0.6 Pinion Short Hardened Steel 21 Teeth 3.17mm C-71621

Overview

The Corally M0.6 Pinion Short Hardened Steel 21 Teeth Shaft Dia. 3.17mm (C-71621) is a premium-quality replacement pinion gear designed for RC enthusiasts and competitors who demand precision engineering and reliability. This high-performance pinion gear is manufactured from special hardened steel using advanced CNC machining techniques, making it an essential upgrade or replacement component for any RC car UK enthusiast running Tamiya-compatible M0.6 gearing systems. Whether you are fine-tuning your setup for maximum performance, replacing a worn gear, or experimenting with different gear ratios to optimise acceleration and top speed, this pinion delivers the concentricity and durability needed for consistent, vibration-free operation on the track.

Corally has earned a reputation as a trusted manufacturer of high-quality RC car components, and this pinion gear exemplifies their commitment to precision and performance. The M0.6 21-tooth pinion is ideal for RC car builders and tuners who understand that gear selection plays a crucial role in overall vehicle performance and handling characteristics. If you are running a Tamiya vehicle or any RC car that uses M0.6 module gears, this pinion offers the perfect solution for achieving your desired gear ratio and unlocking the full potential of your setup. The hardened steel construction ensures long service life even under demanding racing conditions, whilst the precise manufacturing tolerances guarantee smooth, efficient power transfer from motor to drivetrain.

RC Model Shop stocks an extensive range of genuine Corally components for discerning RC enthusiasts across the UK. This 21-tooth pinion is a versatile option that works with all M0.6 compatible cars, giving you the flexibility to experiment with different performance characteristics and find the perfect setup for your driving style and track conditions.

Key Features

• Special Hardened Steel Construction — Manufactured from hardened steel specifically selected for toughness and durability, this pinion resists wear and damage even under repeated use and high-load conditions, ensuring your investment lasts longer and performs reliably throughout the season.
• CNC Cut Teeth with Perfect Shaping — Each tooth is precision-cut using advanced CNC machinery, delivering perfectly shaped teeth with exceptional accuracy that ensures smooth mesh engagement with spur gears and eliminates noise and vibration during operation.
• Ultra-True Running and Unparalleled Concentricity — The pinion features precise tolerances and concentricity that exceed typical aftermarket standards, guaranteeing vibration-free operation and efficient power transmission that directly translates to better handling and performance on the track.
• Module M0.6 Compatibility — This pinion is engineered to work seamlessly with all vehicles equipped with M0.6 gearing, including Tamiya RC cars and other compatible platforms, offering you the flexibility to swap gears and experiment with different ratios without compatibility concerns.
• 21-Tooth Configuration — The 21-tooth count provides a balanced gear ratio option that suits a wide range of driving styles and track conditions, offering a good compromise between acceleration and top speed for general racing and recreational driving.
• 3.17mm Motor Shaft Compatibility — Specifically designed to fit 3.17mm motor shafts, this pinion integrates perfectly with standard Tamiya motors and other compatible powerplants, ensuring secure mounting and reliable operation without slippage.
• Easy Identification — Each pinion is clearly marked with the tooth number, allowing for quick and easy identification during setup changes, maintenance, or when managing multiple pinions of different sizes in your RC workshop.
• Available in Multiple Gearing Sizes — Whilst this is the 21-tooth version, Corally manufactures pinions across the full range of M0.6 sizes, empowering you to dial in the perfect gear ratio for your specific track, driving style, and performance goals.
• Made in Europe — Manufactured to exacting European standards, this pinion represents quality engineering and consistent production practices that ensure every unit meets the same high standards of precision and performance.
• 4mm Teeth Width — The 4mm teeth width provides adequate surface area for power transmission whilst maintaining compatibility with standard M0.6 spur gears, ensuring reliable engagement and load distribution across the entire tooth contact area.

Technical Performance

The Corally M0.6 21-tooth pinion represents a pinnacle of precision engineering in RC gearing technology. Built from special hardened steel and manufactured using advanced CNC machinery, this pinion delivers exceptional performance characteristics that discerning RC builders and racers demand. The gear features a module pitch of M0.6, which is the industry-standard metric pitch used in Tamiya-compatible RC cars and many other platforms throughout the RC car UK market. With a tooth count of 21, this pinion offers a versatile ratio option suitable for diverse driving conditions and performance profiles. The 3.17mm motor shaft diameter ensures compatibility with standard Tamiya motors and other RC powerplants featuring equivalent shaft specifications. At 9mm in overall gear length and featuring 4mm tooth width, the pinion integrates seamlessly into standard RC car drivetrains without modification. The CNC-cut tooth design delivers ultra-precise shaping that guarantees perfect concentricity and vibration-free operation, critical factors for competitive racing where even minor vibrations can affect handling and consistency. The hardened steel material significantly extends service life compared to standard steel alternatives, resisting tooth wear and deformation even under sustained high-load conditions. A 1.5mm hex key is required for secure mounting, making installation straightforward for builders of any experience level. Whether you are tuning a brushless RC car for maximum acceleration or balancing top speed with drivability for mixed-surface racing, the ability to experiment with different pinion teeth counts using this 21-tooth option gives you precise control over your vehicle's performance characteristics.

What's in the Box

• Corally M0.6 Pinion Short Hardened Steel — 21 Teeth

Frequently Asked Questions

• What is a pinion gear and why does it matter for my RC car? — A pinion gear is the small gear mounted on your motor shaft that meshes with the larger spur gear in your transmission. The ratio between pinion and spur gear teeth determines your vehicle's acceleration and top speed characteristics. A smaller pinion tooth count (like this 21-tooth option) increases top speed but reduces acceleration, whilst larger pinion counts improve acceleration at the expense of maximum velocity. Choosing the right pinion is essential for optimising your RC car's performance for your specific track and driving style.
• Is the Corally M0.6 pinion compatible with Tamiya RC cars? — Yes, absolutely. This pinion is specifically designed for all cars equipped with M0.6 gears, and M0.6 is the standard gearing module used across the Tamiya RC car range. If your RC car uses Tamiya M0.6 gears, this pinion will integrate seamlessly into your drivetrain without any modifications or compatibility concerns.
• What is the difference between this 21-tooth pinion and other tooth count options? — Corally manufactures M0.6 pinions across a full range of tooth counts, each offering different performance characteristics. The 21-tooth version provides a mid-range option that balances acceleration and top speed effectively. Lower tooth counts increase top speed but reduce low-end acceleration, whilst higher tooth counts improve acceleration but limit maximum velocity. Your choice depends on your track layout and preferred driving characteristics.
• Does this pinion require any special tools for installation? — Installation requires only a 1.5mm hex key, which is a standard tool found in most RC builder kits. Simply align the pinion on your motor shaft and tighten the set screw with the hex key until secure. No specialist equipment or technical expertise is required for straightforward installation.
• Why is hardened steel better than standard steel for pinion gears? — Hardened steel undergoes a special heat treatment process that significantly increases its hardness and resistance to wear and deformation. This extended durability means your pinion will maintain its tooth profile longer, resisting the gradual wear that softens performance over time. For racers and serious hobbyists, hardened steel pinions deliver better long-term value and more consistent performance throughout a season of use.
• Can I use this pinion with brushless or brushed motors? — Yes, this pinion is compatible with any motor featuring a 3.17mm shaft diameter, regardless of whether you are running a brushless or brushed powerplant. The pinion itself is motor-agnostic; what matters is shaft diameter compatibility, which this 3.17mm specification satisfies for most standard Tamiya motors.
• How do I know which pinion tooth count to choose? — Start by consulting your vehicle's manual for recommended gearing ratios for your specific driving conditions and track type. Generally, lower tooth counts (larger gear ratios) suit high-speed open tracks and top-speed runs, whilst higher tooth counts suit tight technical courses where acceleration and mid-range punch are more valuable. Many RC enthusiasts carry multiple pinions to experiment and fine-tune their setup throughout a race season.
• Is this suitable for beginners? — Whilst pinion replacement is a straightforward task, this component is specifically for users who already have an RC car with compatible M0.6 gearing. If you are completely new to RC cars, you may be better served starting with a ready-to-run RC car UK model that comes fully assembled. However, if you already own a Tamiya RC car and want to upgrade your drivetrain components, this pinion is absolutely beginner-friendly to install and use.

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 M0.6 PINION SHORT HARDENED STEEL 21 TEETH SHAFT DIA. 3.17mm C-71621 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.