Overview
The Traxxas Transmission gears, two speed (for #9891 transmission) TRX9876 are essential upgrade components designed for RC enthusiasts looking to enhance their TRX-4M crawler's performance capabilities. These transmission gears are specifically engineered to work with the High/Low 2-speed transmission system, giving your RC model the versatility it needs for both general driving and serious rock-crawling expeditions. Whether you're a seasoned RC car UK competitor or a weekend basher exploring the capabilities of your crawler, these genuine Traxxas parts represent the perfect solution for expanding your vehicle's crawling potential without compromising on reliability or performance.
Built by Traxxas, one of the most recognised and trusted names in the RC hobby industry, these transmission gears deliver the precision engineering and quality construction that RC enthusiasts expect. The two-speed transmission system represents a significant advancement in crawler technology, allowing drivers to manually select between high gear for standard driving and low gear for incredible rock-crawling torque. This means you can tackle challenging terrain with confidence, knowing that your drivetrain is optimised for maximum performance in any condition. The gears work seamlessly with the #9891 transmission unit, providing smooth gear changes and reliable power delivery whether you're navigating rocky obstacles or cruising on smoother surfaces.
If you already own a TRX-4M and want to unlock its full rock-crawling potential, or if you're considering upgrading your ready to run RC crawler with genuine Traxxas components, these transmission gears are an excellent investment. They represent the kind of quality spare parts and tune-ups that keep your RC vehicle running at peak performance year after year.
Key Features
- Two-Speed Transmission Gears — These gears are specifically designed for the High/Low 2-speed transmission (#9891), allowing you to switch between two distinct gear ratios to suit different driving conditions and terrain types.
- Enhanced Rock-Crawling Capability — The low gear option delivers incredible torque for navigating steep rock faces, obstacles and challenging terrain, whilst the high gear option maintains suitability for general driving on flatter surfaces.
- Genuine Traxxas Quality — Manufactured by Traxxas using their proven engineering standards, these gears are built to withstand the demands of serious RC crawling and repeated use in competitive and recreational driving.
- Compatible with Aftermarket Speed Gear Sets — The transmission is compatible with standard gears and the optional 9776X speed gear set, giving you flexibility to further customise your drivetrain setup to match your specific driving style and terrain preferences.
- Direct Drop-In Replacement — These gears are designed as a direct replacement or upgrade component for existing TRX-4M High/Low 2-speed transmissions, making installation straightforward for users familiar with basic RC maintenance.
- Precision Engineering — Each gear is manufactured to exacting tolerances to ensure smooth, reliable power transfer and consistent performance across repeated gear changes during your crawling sessions.
Technical Performance
The Traxxas Transmission gears, two speed represent the pinnacle of crawler drivetrain technology, engineered specifically for the demands of modern rock-crawling and off-road RC driving. These gears integrate seamlessly with the #9891 transmission unit, which comes fully assembled and ready to install with a new Titan 180 motor and mounting bracket. The two-speed design eliminates the need for external modifications to your TRX-4M, instead providing manually selectable high and low gear ratios through a simple mechanical switching system. The low gear setting provides substantial torque multiplication, essential for climbing steep rock faces and powering through boulder fields, whilst the high gear maintains the speed characteristics needed for general surface driving. Build quality is exceptional throughout, with each gear tooth precisely machined and hardened to resist wear during extended crawling sessions. The gears work in concert with the Titan 180 motor to deliver reliable, predictable power delivery whether you're negotiating tight technical sections or maintaining steady progress across varied terrain. Compatibility testing confirms that these gears work effectively with standard drivetrain components and the optional 9776X speed gear set, though they are not compatible with 9776R crawl gears, so careful selection is important when assembling your complete setup.
What's in the Box
- Traxxas Transmission gears, two speed (for #9891 transmission) TRX9876
Frequently Asked Questions
- What is the TRX9876 designed for? — The TRX9876 transmission gears are specifically engineered for the Traxxas #9891 High/Low 2-speed transmission on TRX-4M RC crawlers. They provide the gearing components necessary for switching between high and low gear ratios, enabling both general driving performance and serious rock-crawling capability.
- Are these gears easy to install? — Yes, the TRX9876 gears are designed as direct replacement components for the #9891 transmission. If you're already familiar with basic RC maintenance and have removed the transmission from your vehicle, installation is straightforward. However, if you're new to RC car UK maintenance, you may want to consult the full Traxxas assembly instructions or ask for guidance from an experienced RC enthusiast.
- What is the difference between high gear and low gear? — High gear provides faster top-end speed and is suitable for general driving on open surfaces. Low gear provides significant torque multiplication, essential for rock-crawling, climbing steep obstacles and navigating technical terrain where maximum pulling power is more important than speed.
- Are these transmission gears compatible with other Traxxas models? — No, the TRX9876 gears are specifically designed for the #9891 transmission found on TRX-4M crawlers. They are not compatible with other Traxxas transmission systems or models.
- What gears are these compatible with? — The #9891 transmission is compatible with standard gears and the optional 9776X speed gear set. However, they are explicitly not compatible with 9776R crawl gears, so if you're planning upgrades, ensure you select compatible components.
- Do I need any tools to install these gears? — Basic RC maintenance tools are typically required, including hex drivers and possibly a gear puller for removing the old gears. A full tool kit suitable for RC car maintenance is recommended if you don't already own one.
- What motor comes with the transmission? — The complete #9891 transmission assembly comes fully assembled and ready to install with a new Titan 180 motor and mounting bracket, so if you're purchasing the full transmission unit, motor compatibility is already ensured.
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 Transmission gears, two speed (for #9891 transmission) TRX9876 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.
- Brand: Traxxas
- Model Number: TRX9876
- Product Type: Transmission Gears, Two Speed
- Compatible With: #9891 Transmission (TRX-4M)
- Spare Part Category: Drivetrain Spares
- Gear Configuration: High/Low 2-speed selectable
- Compatibility: Compatible with standard gears and optional 9776X speed gear set
- Not Compatible With: 9776R crawl gears
- Transmission Assembly Includes: Fully assembled transmission with new Titan 180 motor and mounting bracket (when purchased as complete unit)
- EAN Code: 020334011916
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