Overview
The HOBAO HYPER GTB NITRO 2-SPEED SPUR GEAR 17T/21T HOP-0040 is a precision-engineered transmission component designed specifically for the HoBao Hyper GTB and GTS nitro-powered on-road RC cars. This is an essential upgrade part for serious RC enthusiasts in the UK who demand competitive performance and reliability from their 1/8 scale nitro machines. Whether you're running a weekend basher or preparing your RC car UK for competitive racing, this dual-ratio spur gear system gives you the flexibility to optimise your gearing for different track conditions and driving styles.
This 2-speed spur gear set represents the pinnacle of HoBao's engineering excellence, offering racers and hobbyists the ability to switch between 17-tooth and 21-tooth configurations to fine-tune acceleration, top speed, and overall drivetrain performance. The option to adjust your gear ratio without purchasing multiple individual gears makes this an economical choice for dedicated nitro RC car owners who want to maximise the potential of their HoBao Hyper platform. Available now from RC Model Shop, this genuine OEM part ensures perfect compatibility and long-term durability.
For anyone operating a HoBao Hyper GTB or GTS nitro car, understanding transmission tuning is crucial to getting the best performance from your machine. This spur gear set allows you to experiment with different ratios to find the sweet spot for your driving style, whether you prioritise acceleration out of corners or sustained top-end speed on straightaways. It's an investment that will pay dividends in lap times and overall driving enjoyment.
Key Features
- Dual-ratio configuration (17T/21T) — This 2-speed spur gear system gives you two distinct gear ratio options without needing to purchase separate gears, allowing quick changes between aggressive acceleration tuning and high-speed performance setups.
- Precision-engineered design — HoBao's manufacturing expertise ensures these gears are cut to exacting tolerances, providing smooth meshing with your clutch bell and consistent power delivery across both speed ratios.
- OEM genuine part — As the original equipment manufacturer component, this spur gear is engineered specifically for HoBao Hyper GTB and GTS on-road nitro cars, guaranteeing perfect fit and optimal performance.
- Easy gear ratio switching — Change your spur gear in minutes without special tools or complex procedures, allowing you to adapt your RC car to different track conditions, weather, and fuel types.
- Competitive racing capability — The 17T/21T ratio range covers the spectrum from high-acceleration setups for technical tracks to maximum velocity configurations for faster circuits, making this essential for RC racing UK enthusiasts.
- Cost-effective tuning solution — Rather than buying multiple individual spur gears, this 2-speed option provides flexibility at a single product price point, making transmission tuning more accessible.
Technical Performance
The HOBAO HYPER GTB NITRO 2-SPEED SPUR GEAR HOP-0040 is manufactured to the highest standards by HoBao, a recognised leader in 1/8 scale on-road nitro RC car engineering. The 17-tooth configuration delivers aggressive acceleration and lower top-end speed, ideal for technical tracks with tight corners where quick throttle response is paramount. The 21-tooth option reduces acceleration slightly but increases maximum velocity, making it the choice for high-speed circuits and wide-open straightaway sections. Both ratios interface seamlessly with HoBao's 5x12mm bearing clutch bells (such as the OP-0016, OP-0017, or OP-0018 options), ensuring smooth power transmission from your nitro engine through to the drivetrain. This spur gear system works in conjunction with your existing pinion gear setup to determine overall drivetrain characteristics. The precision tooth profile minimises backlash and vibration, critical factors in maintaining consistent handling and maximising tyre grip on tarmac surfaces. Built from hardened materials, these gears are designed to withstand the intense forces generated by high-revving nitro engines whilst remaining lightweight enough not to add unnecessary rotational mass. The 2-speed design represents the optimal balance between tunability and cost, giving competitive racers and dedicated hobbyists the transmission flexibility they need to extract maximum performance from their HoBao Hyper GTB or GTS nitro platform.
What's in the Box
- 1x 17T/21T 2-speed spur gear set for HoBao Hyper GTB and GTS nitro cars
Frequently Asked Questions
- What is the difference between the 17T and 21T spur gears on this part? — The 17-tooth configuration provides stronger acceleration and quicker throttle response but lower maximum speed, ideal for tight technical circuits. The 21-tooth option offers slightly softer acceleration but higher top-end velocity, better for faster tracks with long straightaways. You can switch between them to optimise for different conditions without buying separate parts.
- Which HoBao models are compatible with this spur gear? — This part is specifically designed for the HoBao Hyper GTB and Hyper GTS nitro-powered 1/8 scale on-road RC cars. Always verify your model matches before purchasing to ensure proper fit.
- How difficult is it to change between the 17T and 21T ratios? — Changing spur gears is a straightforward maintenance task that takes just a few minutes. No special tools are required, making it easy to experiment with different ratios to find the setup that works best for your driving style and track layout.
- What other parts do I need to use this spur gear? — This spur gear meshes with your HoBao clutch bell (which contains the pinion gear). Make sure your clutch bell is compatible with 5x12mm bearings and that your pinion gear ratio works well with your chosen spur ratio for the performance characteristics you want.
- Can I use this on other HoBao models? — No, this part is specifically engineered for the Hyper GTB and Hyper GTS on-road cars. Other HoBao models such as buggies, truggy, or electric variants may have different drivetrain configurations and should not use this spur gear.
- What is the benefit of having a 2-speed spur gear? — A 2-speed design lets you experiment with transmission tuning without the expense of buying multiple individual gears. This makes it perfect for racers and enthusiasts who want to fine-tune their RC car UK performance across different conditions and tracks.
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 GTB NITRO 2-SPEED SPUR GEAR 17T/21T HOP-0040 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.
- Model number: HOP-0040
- Brand: HoBao
- Product type: 2-speed spur gear set
- Gear ratios: 17-tooth and 21-tooth configurations
- Compatibility: HoBao Hyper GTB and HoBao Hyper GTS nitro on-road RC cars
- Bearing size: 5x12mm (compatible with HoBao clutch bells)
- Material: Hardened steel gears
- Scale: 1/8
- Drive system: Nitro on-road
- EAN code: 4711605966818
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