Traxxas Spur Gear 38-Tooth 1.0 Metric Pitch RC Car Drivetrain Part TRX3954

Overview

The Traxxas Spur 38-tooth (1.0 metric pitch) TRX3954 is an essential optional spare part for RC enthusiasts looking to fine-tune the performance of their Traxxas vehicles. Whether you're running a Traxxas Revo or other compatible model, this premium spur gear gives you the flexibility to adjust your final drive ratio and optimise your RC car UK setup for different applications, terrain types and driving conditions. As an upgrade from the standard 36-tooth factory gear, the 38-tooth configuration allows you to tailor your vehicle's acceleration, top speed and overall performance characteristics to match your specific needs and preferences.

Traxxas is renowned worldwide for manufacturing high-quality RC parts and components that meet the exacting standards demanded by competitive racers, weekend bashers and hobby enthusiasts alike. This spur gear represents authentic Traxxas engineering, ensuring perfect compatibility, durability and reliable performance with your existing drivetrain. Whether you're looking to increase top speed through lower gearing or optimise mid-range power delivery, the TRX3954 gives you the tuning capability to unlock the full potential of your brushless RC car or nitro-powered model.

For serious RC enthusiasts across the UK, having a selection of optional spur gears in your spares box is essential maintenance practice. The 38-tooth configuration offers a subtle but meaningful performance adjustment compared to the factory 36-tooth gear, making this an ideal choice for drivers seeking incremental performance gains without drastically altering their vehicle's character. This genuine Traxxas component comes from an authorised UK retailer with expert knowledge of RC tuning and setup, ensuring you receive genuine products with full compatibility guarantees.

Key Features

• 1.0 Metric Pitch Design — This precision gear pitch ensures perfect engagement with your vehicle's pinion gear and transmission components, guaranteeing smooth power delivery without binding, slippage or excessive wear. Traxxas 1.0 metric pitch gears are engineered to exacting tolerances for reliability.
• 38-Tooth Configuration — The 38-tooth design provides an intermediate gear ratio that increases top speed compared to the factory 36-tooth standard spur gear, making it ideal for tracks and applications where higher final-drive speeds are advantageous. This represents an effective performance tuning upgrade.
• Optional Spare Part — As a dedicated spare component, this spur gear allows you to rapidly change your vehicle's performance characteristics without major modifications or additional parts purchases. Simply swap gears to instantly transform your RC car's drivetrain behaviour.
• Genuine Traxxas Component — Manufactured to the same exacting quality standards as all Traxxas drivetrain parts, this gear ensures compatibility and durability with your existing transmission and chassis. Only genuine Traxxas parts guarantee proper fit and performance.
• Drivetrain Tuning Capability — For drivers serious about optimising their ready to run RC vehicles or competition-grade setups, this spur gear allows professional-level gear ratio adjustment to match specific track conditions, weather and driving styles.

Technical Performance

The Traxxas Spur 38-tooth TRX3954 represents precision engineering designed specifically for the demands of high-performance RC vehicles. Built from hardened steel or composite materials engineered for maximum strength-to-weight ratio, this spur gear is designed to withstand the torque loads generated by brushless motors and powerful nitro engines. The 1.0 metric pitch specification ensures absolute compatibility with Traxxas pinion gears and transmission systems, providing smooth engagement, efficient power transfer and minimal drivetrain noise. The 38-tooth design sits between the factory 36-tooth standard gear and higher-tooth configurations, offering drivers a balanced approach to performance tuning. When paired with your vehicle's pinion gear, the tooth count ratio directly influences your top speed, acceleration profile and overall performance envelope. Upgrading from the standard 36-tooth gear to the 38-tooth TRX3954 effectively increases your vehicle's final drive speed, providing measurable performance gains on high-speed tracks, open terrain and applications where maximum velocity is advantageous. This component is essential for drivers running brushless RC cars or high-powered nitro vehicles who demand reliable, durable drivetrain components. The precision manufacturing ensures zero play, perfect gear mesh and consistent performance throughout your RC racing season.

What's in the Box

• Traxxas Spur 38-tooth 1.0 metric pitch gear TRX3954

Frequently Asked Questions

• What is the difference between the 36-tooth and 38-tooth spur gears? — The standard factory spur gear for Traxxas vehicles is 36-tooth. The 38-tooth TRX3954 provides a higher tooth count, which increases your final drive ratio and top speed compared to the standard setup. This makes the 38-tooth gear ideal for high-speed driving, open tracks and applications where maximum velocity is the priority. It's an excellent tuning upgrade for drivers seeking incremental performance gains.
• How do spur gears affect RC car performance? — The spur gear works together with your pinion gear to create your vehicle's overall gear ratio, which directly determines acceleration, top speed and engine load characteristics. A higher tooth count (like the 38-tooth) increases top speed but may reduce low-end acceleration. Lower tooth counts increase acceleration but reduce top speed. By swapping spur gears, you can tune your RC car UK setup to match specific track conditions, weather and driving preferences without purchasing new motors or ESCs.
• Will this work with my Traxxas vehicle? — The TRX3954 is specifically designed for Traxxas models that use 1.0 metric pitch spur gears, including the Traxxas Revo and other compatible chassis. Always verify your vehicle uses 1.0 metric pitch before purchasing. Check your Traxxas manual or contact our expert team if you're unsure about compatibility with your specific model.
• Do I need any tools to change the spur gear? — Changing a spur gear is a straightforward operation requiring basic tools including a hex key or screwdriver to remove the gear-retention clip or bolt, depending on your vehicle design. Most drivers can complete a spur gear swap in under five minutes. Refer to your Traxxas manual for detailed instructions specific to your model.
• Can I use this gear on a brushless or nitro RC car? — Yes, the TRX3954 is compatible with both brushless electric RC cars and nitro-powered vehicles. The spur gear operates independently of your power system, making it universally compatible across different drivetrain types as long as your vehicle uses 1.0 metric pitch gears.
• Why would I want to change my spur gear? — Experienced RC enthusiasts change spur gears to fine-tune performance for specific applications. High-speed tracks benefit from higher tooth counts like the 38-tooth TRX3954. Tight, technical courses might require lower tooth counts for better acceleration. Weather conditions, tyre choice and surface types all influence optimal gear selection. Having multiple spur gears in your spares box allows you to make rapid adjustments without major vehicle modifications.

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 Spur 38-tooth (1.0 metric pitch) TRX3954 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.