HoBao Hyper SSe Cage Electric 1/8 Motor Pinion 20T 5mm Shaft HOP-0037

Overview

The HoBao HYPER SSe/CAGE ELECTRIC 1/8 MOTOR PINION 20T (5MM SHAFT) HOP-0037 is a precision-engineered motor pinion gear designed specifically for the HoBao Hyper SS/Cage electric RC buggy platform. This component is an essential upgrade for RC car enthusiasts across the UK who are looking to optimise their vehicle's performance, whether they're casual weekend bashers or competitive racers. The 20-tooth pinion is manufactured by HoBao, a recognised name in quality RC components, and represents a critical drivetrain element that directly influences your vehicle's acceleration, top speed and overall driving characteristics.

Motor pinion gears are one of the most frequently replaced wear items in any RC car, as they work in constant contact with the spur gear and experience significant stress during driving. If you're noticing slower acceleration, difficulty reaching top speed, or simply want to fine-tune your RC buggy's performance, upgrading to a fresh HoBao pinion gear is often the solution. This particular 20-tooth variant is engineered to work seamlessly with the Hyper SSe/Cage electric platform, ensuring compatibility and reliability that you can depend on. Whether you're shopping for RC parts online in the UK or building a complete new setup, having quality replacement pinions in stock is essential for keeping your vehicle in peak condition.

The 5mm shaft design ensures secure mounting on most modern electric motor shafts used in 1/8-scale electric RC buggies and off-road vehicles. HoBao's reputation for manufacturing durable, precision-cut gears means this pinion will provide consistent mesh with your spur gear, translating to smoother power delivery and reduced drivetrain wear over time. For anyone serious about maintaining their RC vehicle to the highest standards, this OEM-specification pinion is an absolute must-have.

Key Features

• 20-Tooth Precision Cut Design — The 20-tooth configuration offers a balanced approach to gearing, providing a middle ground between acceleration and top speed that works exceptionally well in the Hyper SSe/Cage platform, making it ideal for mixed driving conditions and general bashing.
• 5mm Shaft Bore — The precisely machined 5mm shaft opening ensures a snug, wobble-free fit on standard 5mm motor shafts found in 1/8-scale electric RC cars, preventing shaft slip and maintaining consistent power delivery during hard driving.
• OEM HoBao Specification — Manufactured by HoBao to exact factory specifications, this pinion gear guarantees perfect compatibility with your Hyper SSe/Cage electric buggy and matches the original equipment exactly in terms of tooth profile, material and durability.
• High-Strength Material Construction — HoBao pinion gears are machined from quality materials designed to withstand the demanding stresses of competitive and casual RC driving, resisting tooth stripping and premature wear even under sustained high-load conditions.
• Direct OEM Part Replacement — As an official HoBao component, this pinion is the correct factory replacement for worn or damaged original gears, restoring your vehicle to manufacturer performance standards and ensuring you're not compromising with inferior alternatives.
• Essential Drivetrain Component — Motor pinion gears are wear items that gradually lose effectiveness over time; having genuine HoBao replacements on hand means you'll always have the correct part ready when your current pinion needs replacing, keeping your RC car ready for action.
• Precision Engineering — Every tooth is cut to exacting tolerances to ensure smooth, quiet mesh with your spur gear, reducing noise and vibration during operation and extending the life of your entire drivetrain system.

Technical Performance

The HoBao Hyper SSe/Cage platform is engineered as a 1/8-scale electric RC buggy, and the motor pinion is a critical component that determines how efficiently power transfers from the electric brushless motor to the wheels via the transmission system. The 20-tooth pinion represents the stock or near-stock gearing option for this platform, offering drivers a versatile performance envelope. In electric RC cars, the pinion gear works in direct mesh with a larger spur gear mounted on the transmission output shaft; the ratio between these two gears determines your vehicle's final drive ratio and therefore its acceleration and top speed characteristics. A 20-tooth pinion paired with a typical spur gear ratio produces moderate acceleration with reasonable top-speed capability, making it suitable for mixed driving on varied terrain. The 5mm shaft bore is the standard specification for most 1/8-scale electric motors, and the precision manufacturing ensures the pinion seats perfectly without any radial play that could introduce slop or vibration into the drivetrain. HoBao's reputation in the RC industry is built on manufacturing components that balance performance with reliability, and this pinion exemplifies that philosophy. The quality of mesh between pinion and spur gear directly affects power transmission efficiency, heat generation, and the lifespan of both gears; using an authentic HoBao pinion rather than a third-party alternative ensures optimal performance and longevity. Whether you're running a brushless motor in your Hyper SSe/Cage platform or upgrading from a brushed system, this pinion will integrate seamlessly and provide the consistent power delivery that HoBao vehicles are known for delivering.

What's in the Box

• 1x HoBao Hyper SSe/Cage Electric 1/8 Motor Pinion 20T (5MM SHAFT)

Frequently Asked Questions

• What does a motor pinion gear do in an RC car? — The motor pinion is a small gear that mounts directly onto your electric motor shaft and meshes with a larger spur gear on your transmission. It's the first gear in your drivetrain and directly affects how quickly your motor's rotations are converted into wheel speed. A smaller pinion (fewer teeth) means higher top speed but lower acceleration, whilst a larger pinion (more teeth) means better acceleration but lower maximum speed. The 20-tooth size is a versatile option that balances both characteristics.
• How often do I need to replace my motor pinion? — Motor pinions are wear items and the replacement frequency depends on how heavily you drive. Casual bashers might replace them every few months, whilst competitive drivers might need new ones every few weeks. You'll know it's time to replace the pinion when you notice the teeth becoming worn or blunt, when your vehicle loses acceleration or top speed despite having a fresh battery, or if you hear grinding sounds when the pinion meshes with the spur gear.
• Will this pinion fit my HoBao Hyper SSe/Cage electric buggy? — Yes, this is the genuine OEM HoBao pinion specifically designed for the Hyper SSe/Cage electric platform. It's the direct factory replacement and will fit perfectly on a standard 5mm electric motor shaft. Make sure your motor has a 5mm shaft, as some older or alternative motor brands might use different shaft sizes.
• What's the difference between a 19-tooth and 20-tooth pinion? — The tooth count directly affects your gearing ratio. A 19-tooth pinion (paired with a given spur gear) will provide slightly higher top speed but slightly lower acceleration compared to a 20-tooth. The 20-tooth offers more balanced performance for general driving and is often the stock specification. Many drivers keep both options on hand so they can adjust gearing for different tracks or driving styles.
• Is this a genuine HoBao part? — Yes, this is an official HoBao OEM component manufactured to factory specifications. We supply only genuine, authorised HoBao parts to ensure you receive components that meet the original engineering standards and quality control that HoBao vehicles are built to.
• What's the shaft bore size and why does it matter? — The 5mm shaft bore refers to the hole diameter that slides onto your electric motor's shaft. This is the standard size for 1/8-scale electric motors. Using the correct bore size is critical; if your motor shaft is a different size, the pinion won't fit or will slip during use, potentially damaging both the shaft and 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 HOBAO HYPER SSe/CAGE ELECTRIC 1/8 MOTOR PINION 20T (5MM SHAFT) HOP-0037 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.