Traxxas Pinion Gear 11-T 0.8 Metric Pitch 5mm Shaft RC Car TRX5641

Overview

The Traxxas Gear, 11-T Pinion (0.8 Metric Pitch, Compatible with 32-Pitch) (Fits 5mm Shaft) / Set Screw TRX5641 is an essential replacement and upgrade component for RC car enthusiasts across the UK. Whether you're a serious competitor, weekend basher, or dedicated RC hobbyist looking to fine-tune your vehicle's performance, this precision-engineered pinion gear delivers the reliability and compatibility that Traxxas is renowned for. This small but critically important component plays a vital role in your RC car's drivetrain, directly affecting acceleration, top speed, and overall performance characteristics. If you're running a Traxxas Stampede 4X4 HD VXL or similar compatible models, having the correct pinion gear specification is absolutely fundamental to achieving optimal performance and protecting your motor and transmission system from damage.

Pinion gears are the driving force behind your RC car's motion, meshing with the spur gear to transfer power from your brushless motor to the wheels. The 11-tooth configuration of this particular gear makes it an excellent choice for users seeking a balanced setup that doesn't sacrifice too much top speed for acceleration. This component represents genuine Traxxas engineering, manufactured to exact tolerances and quality standards that ensure reliable performance lap after lap, bash after bash. UK RC car owners know that investing in quality replacement parts like this pinion gear is far more cost-effective than replacing damaged motors and transmissions due to incompatible or worn-out components.

Whether you need a replacement after wear and tear, or you're looking to experiment with different gear ratios to fine-tune your RC car's performance characteristics, this 11-T pinion gear is a straightforward upgrade that delivers measurable results. The set screw design ensures secure mounting on your 5mm motor shaft, eliminating any risk of slippage or misalignment during high-performance driving. This is the kind of precision component that separates reliable, well-maintained RC cars from those plagued by drivetrain issues.

Key Features

• 11-Tooth Pinion Configuration — The 11-tooth design provides an optimal balance between acceleration and top speed, making this gear suitable for a wide range of driving styles and track conditions across UK RC car racing and bashing applications.
• 0.8 Metric Pitch Specification — This metric pitch rating ensures precise, reliable meshing with compatible spur gears in your RC drivetrain, eliminating vibration and wear that would result from incompatible or mismatched components.
• 32-Pitch Compatible Standard — The 32-pitch compatibility means this pinion gear works seamlessly with standard RC car spur gears found on most modern Traxxas vehicles, ensuring you're not locked into proprietary solutions.
• 5mm Shaft Bore — The 5mm shaft bore is specifically designed to fit standard Traxxas motor shafts, providing a secure, wobble-free fit that ensures consistent power delivery and prevents the gear slipping under load.
• Set Screw Mounting System — The secure set screw design allows you to lock the pinion gear firmly onto your motor shaft, preventing any rotational slip during acceleration, cornering, or high-speed driving, which is essential for reliable performance.
• Genuine Traxxas OEM Component — As an original equipment manufacturer part from Traxxas, this pinion gear meets exact factory specifications and tolerances, guaranteeing compatibility with your RC vehicle and long-term reliability.
• Direct Compatibility with Stampede 4X4 HD VXL — This gear is specifically engineered to work perfectly with the Traxxas Stampede 4X4 HD VXL 1:10 4WD brushless electric monster truck, whether you're running the blue, orange, or green model variant.
• Precision Engineering and Quality Control — Every Traxxas pinion gear is manufactured to extremely tight tolerances using quality materials that resist wear, deformation, and failure, ensuring your investment in this component provides extended service life.

Technical Performance

This Traxxas 11-T pinion gear represents precision engineering at its finest, designed to work in perfect harmony with your RC car's transmission system. The 0.8 metric pitch specification ensures that this pinion meshes flawlessly with compatible 32-pitch spur gears, creating a smooth power transfer pathway from your brushless motor to your wheels. The gear is manufactured from hardened materials that resist the enormous stresses placed on drivetrain components during high-performance driving, whether you're bashing across rough terrain or competing on a track. The 5mm shaft bore is precisely tolerant to fit snugly on Traxxas motor shafts without any play or wobble, which is absolutely critical for maintaining consistent performance and preventing the kind of drivetrain slack that leads to poor handling and premature wear. When you install this pinion with the included set screw, you're creating a secure connection that can handle the brutal torque loads generated by modern brushless motor systems without slipping or shifting. The 11-tooth count positions this gear perfectly in the middle of the speed-versus-acceleration spectrum, making it suitable for both high-speed bashing and technical driving that requires responsive acceleration. Whether you're running a 3S LiPo, 4S LiPo, or higher-voltage battery system in your Stampede 4X4 HD VXL or compatible model, this pinion gear is engineered to handle the power delivery without compromise. UK RC car competitors and bashers alike rely on quality OEM components like this to keep their vehicles running at peak performance, which is why Traxxas pinion gears remain the trusted choice across the RC community.

What's in the Box

• Traxxas 11-T Pinion Gear (0.8 Metric Pitch)
• Set Screw for secure shaft mounting

Frequently Asked Questions

• What is a pinion gear and why do I need it in 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. It's responsible for transferring power from your brushless motor to your RC car's wheels. Without the correct pinion gear, your motor either won't have enough power to drive the wheels or your car will lose performance and speed. The pinion gear determines your vehicle's gear ratio, which affects acceleration, top speed, and overall drivability. Whether you're bashing or racing an RC car in the UK, the right pinion gear is absolutely essential.
• Is this pinion gear compatible with my RC car? — This TRX5641 pinion gear is specifically designed for the Traxxas Stampede 4X4 HD VXL 1:10 4WD brushless electric monster truck, available in blue, orange, and green variants. It's also compatible with other Traxxas vehicles that use a 5mm motor shaft and 32-pitch spur gears. Check your vehicle's documentation or contact us if you're unsure whether this gear will work with your specific model.
• What does the 11-T designation mean and how does it affect my RC car's performance? — The 11-T refers to the number of teeth on the pinion gear. This tooth count directly affects your RC car's performance: fewer teeth (like 9-T or 10-T) increase top speed but reduce acceleration, whilst more teeth (like 12-T or 13-T) increase acceleration and torque but reduce top speed. The 11-T configuration provides an excellent middle ground, offering balanced acceleration and decent top speed, making it perfect for general-purpose bashing and recreational driving. If you want more speed, you'd switch to a 10-T; if you need more punch off the line, you'd go to a 12-T.
• What is 0.8 metric pitch and why does it matter? — Metric pitch refers to the spacing between teeth on a gear. The 0.8 metric pitch specification means this pinion is designed to mesh perfectly with spur gears of the same pitch specification. Using mismatched pitch gears leads to poor meshing, excessive noise, vibration, premature wear, and potential damage to your transmission. The 0.8 metric pitch standard is commonly used in modern Traxxas vehicles, ensuring this gear works flawlessly with compatible components.
• How do I install this pinion gear on my RC car? — Installation is straightforward: slide the pinion gear onto your motor shaft so the teeth align correctly with your spur gear. Once positioned, use the included set screw to lock the gear firmly in place. Tighten the set screw securely but not excessively—you want it snug enough that the gear doesn't slip under load, but not so tight that you crack the gear teeth. Most users prefer to do this with the motor removed from the vehicle for easier access.
• What size motor shaft does this pinion fit? — This pinion gear is specifically designed for 5mm motor shafts, which is the standard on most modern Traxxas brushless motors. The 5mm specification ensures a precise fit without any play or wobble, which is essential for consistent performance and reliability during high-speed driving or aggressive bashing.
• How often will I need to replace this pinion gear? — The lifespan of a pinion gear depends on your driving habits, the condition of your spur gear, and how well you maintain your RC car's drivetrain. With normal recreational bashing, a quality Traxxas pinion gear should last many months to over a year. If you notice stripped teeth, wobbling, or poor acceleration, it's time for a replacement. Racing competitively in the UK typically requires more frequent drivetrain checks and replacements.
• Can I use different tooth counts to adjust my RC car's performance? — Absolutely. By swapping to different pinion gear tooth counts, you can fine-tune your RC car's performance without purchasing an entirely new vehicle. However, you must ensure compatibility with your spur gear and motor shaft size. Traxxas offers pinion gears in various tooth counts (typically 9-T through 14-T), allowing you to dial in the perfect balance for your specific driving style, track conditions, and power system.
• Is this an OEM Traxxas part or a third-party replacement? — This is a genuine OEM (Original Equipment Manufacturer) Traxxas part, meaning it's built to exact factory specifications. Traxxas components are engineered to work perfectly with Traxxas vehicles, delivering reliability and performance that aftermarket alternatives often cannot match. Investing in genuine OEM parts protects your investment in your RC car.
• What should I check when installing a new pinion gear? — Before installation, inspect the new pinion gear for any damage to the teeth. During installation, ensure the gear is positioned correctly so it meshes smoothly with the spur gear without binding or excessive end play. After installation, manually spin the gears to confirm smooth, quiet operation. If you hear grinding, grinding, or feel resistance, remove the pinion and check alignment. Additionally, verify that the set screw is tight enough to prevent slipping but not so tight as to damage the gear.

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 Gear, 11-T Pinion (0.8 Metric Pitch, Compatible with 32-Pitch) (Fits 5mm Shaft) / Set Screw TRX5641 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.