Overview
The Traxxas Pinion Gear (28-tooth) (48-pitch) Set TRX4728 is an essential performance tuning component for RC enthusiasts across the UK who demand precision engineering and reliable drivetrain management. Whether you're piloting a brushless RC monster truck, rally car, or any compatible Traxxas model, this pinion gear allows you to fine-tune your vehicle's performance characteristics to suit different running conditions and track requirements. Traxxas has built a reputation for manufacturing high-quality drivetrain components, and this pinion gear represents the same commitment to excellence that has made them a trusted name in the RC hobby across Europe and beyond.
Pinion gears are critical components in your RC car's transmission system, directly influencing the balance between acceleration and top speed. By selecting the correct gear ratio through pinion gear selection, you can optimise your vehicle's performance for everything from competitive racing to casual weekend bashing. The 28-tooth configuration offers a specific gear ratio that suits a variety of Traxxas platforms, making it an ideal upgrade or replacement part for anyone looking to explore different performance characteristics. RC car UK enthusiasts understand that small changes in drivetrain components can yield significant improvements in handling and responsiveness, and this Traxxas pinion gear delivers exactly that kind of performance advantage.
This component is manufactured to Traxxas's exacting standards, ensuring perfect compatibility with Traxxas torque control slipper clutches and transmission systems. Whether you're upgrading from factory gearing or experimenting with performance tuning for competitive advantage, the TRX4728 is a straightforward, reliable solution that delivers measurable results.
Key Features
- 48-Pitch Specification — The 48-pitch (48DP) specification means this gear is engineered for precision meshing with compatible spur gears found on many Traxxas models, ensuring smooth power delivery and minimal drivetrain wear during aggressive driving and competition use.
- 28-Tooth Configuration — This tooth count provides a specific gear ratio that balances acceleration and top speed, making it suitable for a range of driving conditions and allowing you to dial in the exact performance characteristics your vehicle needs.
- 3.2mm Bore Diameter — The precisely machined 3.2mm bore ensures a secure fit on standard Traxxas motor shafts, preventing slippage and maintaining consistent performance during high-torque acceleration and sustained running sessions.
- Performance Tuning Capability — By changing pinion gear ratios, you can fundamentally alter how your RC car accelerates and reaches top speed, giving you the flexibility to optimise performance for different track layouts, terrain types, and driving styles.
- Torque Control Slipper Clutch Compatibility — This pinion gear is specifically designed to work seamlessly with Traxxas torque control slipper clutches, providing smooth engagement and protecting your drivetrain during aggressive acceleration and load changes.
- Genuine Traxxas Manufacturing — As an official Traxxas component, this pinion gear is manufactured to the same rigorous quality standards as the vehicles themselves, ensuring durability and longevity even under competitive use.
Technical Performance
The Traxxas Pinion Gear TRX4728 represents precision engineering designed to integrate seamlessly into Traxxas's modular drivetrain architecture. With 28 teeth and a 48-pitch specification, this component meshes precisely with compatible spur gears to deliver efficient power transfer from motor to wheels. The 3.2mm bore diameter is machined to exacting tolerances, ensuring concentricity and eliminating runout that could cause vibration or premature wear. Traxxas employs high-grade materials in the manufacture of these pinion gears, selecting compounds that balance hardness with resilience to withstand the tremendous stresses experienced during high-speed running and aggressive acceleration. The tooth profile is engineered to provide smooth engagement with spur gears, minimising noise and maximising drivetrain efficiency. Whether you're running a brushless RC monster truck, a high-performance rally car, or another Traxxas platform, selecting the correct pinion gear ratio is fundamental to unlocking your vehicle's true performance potential. UK RC enthusiasts understand that drivetrain tuning is one of the most cost-effective and impactful modifications available, and this genuine Traxxas component provides a reliable foundation for that experimentation.
What's in the Box
- Traxxas Pinion Gear (28-tooth, 48-pitch) — one piece ready to install
What You Need to Complete
- Traxxas vehicle compatible with 48-pitch pinion gears (please consult your owner's manual to confirm compatibility with your specific model)
- Standard RC car tools for gear installation and adjustment
- Appropriate spur gear compatible with your Traxxas model
Frequently Asked Questions
- Which Traxxas models are compatible with the TRX4728 pinion gear? — This 28-tooth 48-pitch pinion gear is compatible with several Traxxas platforms, including the E-Revo VXL 1:16 4x4 (both the purple TRX71076-8-PRPL and blue X TRX71076-8-BLUEX variants), the Ford Fiesta ST Rally BL-2S in red (TRX74154-4-RED), and the Ford Fiesta ST Rally VXL in green (TRX74276-4-GRN). However, it's essential to consult your specific vehicle's owner's manual to confirm compatibility, as different models and vintages may use different gear specifications.
- What does the 48-pitch specification mean, and why does it matter? — The 48-pitch (48DP) specification refers to the gear's diametral pitch, which determines the size and spacing of the teeth. This measurement is critical because it must match the pitch of your vehicle's spur gear to ensure proper meshing and smooth power delivery. Using mismatched pitch gears will result in poor engagement, increased noise, and potential drivetrain damage.
- How does changing pinion gear tooth count affect my RC car's performance? — The number of teeth on your pinion gear directly determines your vehicle's gear ratio. A pinion gear with fewer teeth creates a numerically higher gear ratio, resulting in faster top speed but reduced acceleration and climbing ability. Conversely, a pinion gear with more teeth creates a lower numerical ratio, improving acceleration and torque at the expense of top speed. The 28-tooth configuration in this set provides a mid-range ratio suitable for many driving styles and conditions.
- Is professional installation required for this pinion gear? — Installation of a pinion gear is relatively straightforward for anyone with basic RC car maintenance experience and appropriate tools. However, proper installation requires careful attention to gear mesh alignment and backlash settings to ensure optimal performance and minimise wear. Your Traxxas owner's manual provides detailed installation instructions specific to your vehicle model.
- What is the 3.2mm bore size, and does it matter? — The 3.2mm bore diameter is the hole in the centre of the gear that fits over your motor shaft. This measurement must match your vehicle's motor shaft diameter precisely to ensure a secure fit with no slippage. Traxxas motors using standard pinion gear setups feature 3.2mm shafts, making this the correct specification for compatible vehicles.
- Can I use this pinion gear with non-Traxxas vehicles? — Whilst this is a Traxxas-specific pinion gear designed for Traxxas vehicles, some enthusiasts may experiment with cross-platform compatibility. However, this is not recommended, as drivetrain geometry varies between manufacturers, and improper fitment could result in performance issues or damage. Always use components designed specifically for your vehicle.
- Why should I consider changing my pinion gear? — Experimenting with different pinion gear ratios is one of the most accessible and effective forms of RC performance tuning. Whether you're running at a local track, competing in organised events, or simply exploring different driving characteristics, the ability to adjust your gear ratio allows you to optimise acceleration, top speed, and overall responsiveness to match specific conditions.
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 Pinion Gear (28-tooth) (48-pitch) Set TRX4728 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: TRX4728
- Product Type: Pinion Gear
- Tooth Count: 28 teeth
- Gear Pitch: 48DP (48-pitch)
- Bore Diameter: 3.2mm
- EAN Code: 0020334472809
- Compatible Vehicles: Traxxas E-Revo VXL 1:16 4x4 RTR Brushless VXL-3M Monster Truck (Purple and Blue X variants), Traxxas Ford Fiesta ST Rally BL-2S Rally Car (Red), Traxxas Ford Fiesta ST Rally VXL (Green)
- Application: Performance tuning for Traxxas torque control slipper clutches
- Material: High-grade engineered compound designed for durability and efficient power transfer
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