Team Corally 64DP Pinion Gear Short 31 Teeth Hardened Steel 3.17mm Shaft C-71331

Overview

The Corally 64 DP Pinion Short Hardened Steel 31 Teeth Shaft Dia. 3.17mm (C-71331) is a high-performance replacement pinion gear designed for RC car enthusiasts across the UK who demand precision engineering and durability. Whether you're a dedicated racer fine-tuning your RC car UK setup, a weekend basher pushing your vehicle to the limit, or a hobbyist looking to upgrade your gearing options, this premium pinion gear delivers the concentricity and reliability that modern RC racing demands. Manufactured by Team Corally, a recognised leader in RC components, this pinion represents the perfect combination of European engineering excellence and meticulous attention to detail that serious RC enthusiasts expect from their upgrades.

This 31-tooth pinion gear is engineered specifically for drivers who need to optimise their gear ratios for different track conditions and racing scenarios. The special hardened steel construction ensures exceptional toughness and longevity, while the CNC-cut teeth provide ultra-precise tooth shaping that guarantees smooth, vibration-free operation. Each pinion is individually marked with its tooth count for quick and easy identification, making it simple to manage your gear collection and swap ratios when conditions demand it. The 3.17mm shaft diameter fits all motors with standard 3.17mm shafts, making this pinion compatible with a wide range of 64DP equipped RC cars.

For competitive racers and serious hobbyists building a complete RC car UK setup, having access to multiple pinion options is essential. The 31-tooth configuration offers a particular gear ratio that balances acceleration with top-end speed, making it ideal for tracks that require a mix of responsive handling and sustained velocity. This is the kind of precision component that separates competitive builds from casual setups, and it's the choice of drivers who understand that every detail contributes to overall performance.

Key Features

• Special Hardened Steel Construction — The pinion is manufactured from specially hardened steel, which provides superior resistance to wear, deformation and tooth stripping compared to standard materials. This means your gear will maintain its precision and performance even after hundreds of hours of running, protecting your investment in your RC car.
• CNC-Cut Teeth for Perfect Tooth Shape and Concentricity — Each tooth is precisely machined using computer numerical control technology, ensuring perfect geometry and concentricity. This eliminates runout and vibration, resulting in smoother power delivery, quieter operation and reduced wear on both the pinion and spur gear during aggressive RC car racing sessions.
• Ultra-Precise Manufacturing on Specialist Gear Machines — Corally uses dedicated gear-cutting equipment to create each pinion, guaranteeing that every tooth is shaped identically and runs true. This level of manufacturing precision is typically found only in competition-grade components, yet Corally delivers it as standard across their entire pinion range.
• Module 64DP Specification — The 64 DP (diametral pitch) specification ensures compatibility with all other 64DP gears in the RC car market, giving you flexibility to match this pinion with any 64DP spur gear for unlimited gear ratio combinations across your fleet of RC vehicles.
• 3.17mm Motor Shaft Compatibility — The 3.17mm shaft diameter is the industry-standard size for most modern RC car motors, making installation straightforward and compatible with virtually any brushless motor in typical 1/10 and similar scale RC cars.
• Individual Tooth Count Marking — Each pinion is laser-marked with its tooth number (31T in this case), eliminating any confusion when managing multiple gears and ensuring you always grab the correct ratio for your track conditions during competitive events or practice sessions.
• Available in Complete Gearing Range — Corally manufactures this same pinion design across multiple tooth counts, allowing you to assemble the perfect gear ratio for any track condition, from tight technical courses to wide-open speed tracks, making this part of a comprehensive performance upgrade strategy.
• Made in Europe — Manufactured to European quality standards, this pinion represents the precision and reliability that British and European RC enthusiasts have come to expect from premium RC car components.
• 1.5mm Hex Key for Installation — The pinion uses a standard 1.5mm hex key (Allen key) for secure attachment to your motor shaft, a specification included for those performing their own maintenance and upgrades on their RC racing setups.

Technical Performance

The Corally 64 DP Pinion Short represents a significant engineering achievement in RC car component manufacturing. With 31 teeth and a module specification of 64 DP, this pinion delivers a specific gear ratio that's favoured by drivers seeking a balanced approach to track performance. The hardened steel construction is engineered to withstand the tremendous forces generated during acceleration and deceleration in competitive RC racing, where peak loads can exceed those of standard road-going vehicles when scaled appropriately. The CNC-cut tooth profile ensures that mesh engagement with your spur gear is perfect, eliminating the micro-slippage and vibration that can rob your RC car of efficiency and speed. The 4mm tooth width and 9mm overall gear length provide optimal contact area while maintaining the compact form factor required by modern RC car gearboxes. The ultra-true running characteristic—achieved through precision manufacturing on specialist gear machines—means the pinion rotates without runout, eliminating vibration that could otherwise compromise handling precision or damage bearings over extended running periods. For drivers upgrading their RC car in the UK, this pinion represents the kind of precision upgrade that transforms how a vehicle feels and performs, delivering measurable improvements in acceleration smoothness and top-end speed consistency across varied track surfaces and conditions.

What's in the Box

• Corally 64 DP Pinion Short — 31 Teeth — Hardened Steel

Frequently Asked Questions

• What is a 64 DP pinion and why does the tooth count matter? — DP stands for diametral pitch, a measurement standard that defines the size and spacing of gear teeth. 64 DP is a common specification in 1/10 scale RC cars. The tooth count (31 in this case) directly affects your vehicle's gear ratio: higher tooth counts provide more acceleration but lower top speed, while lower tooth counts give the opposite effect. The 31-tooth configuration is ideal for balanced performance on mixed tracks.
• Is this pinion compatible with my RC car? — The Corally 64 DP pinion fits all RC cars equipped with 64 DP gears and motors with 3.17mm shafts. If your vehicle uses different specifications (such as 48 DP or 32 DP), or has a different shaft diameter, this pinion will not be compatible. Check your vehicle's documentation or contact us to confirm compatibility.
• How long will this pinion last before I need to replace it? — The hardened steel construction and precision manufacturing mean this pinion will outlast standard alternatives significantly. Under normal use, you can expect hundreds of hours of running before wear becomes noticeable. However, frequency of replacement depends on driving intensity, track conditions and maintenance practices. Competitive racers running multiple heats daily may replace pions more frequently than casual weekend bashers.
• What is the difference between this and cheaper pinion options? — The Corally pinion is manufactured using CNC equipment on specialist gear-cutting machines, ensuring perfect tooth geometry and true running. Cheaper alternatives often show runout and inconsistent tooth profiles, leading to vibration, noise and premature wear. The hardened steel also resists deformation better than softer materials, maintaining your chosen gear ratio's performance throughout the pinion's lifespan.
• Can I mix this pinion with spur gears from other manufacturers? — Yes, provided the spur gear is also 64 DP specification. All 64 DP gears mesh according to the same standard, so Corally pinions work with spur gears from other quality manufacturers. However, we recommend matching Corally pinions with Corally spur gears for optimal results, as they're engineered as a system.
• How do I install this pinion on my motor? — The pinion slides onto your motor's 3.17mm shaft and is secured using a small grub screw with a 1.5mm hex key (Allen key). Always ensure the pinion is fully seated on the shaft before tightening the set screw. Consult your vehicle's manual for specific installation instructions, as some vehicles have particular requirements for motor pinion position within the gearbox.
• Why is the tooth marking important? — The laser-marked tooth count prevents confusion when you own multiple pinions in different sizes. During a race event or practice session, this marking lets you instantly confirm you're using the correct ratio without having to count teeth manually or refer to packaging.

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 31 TEETH SHAFT DIA. 3.17MM C-71331 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.