Traxxas 18-Tooth 48-Pitch Pinion Gear with Set Screw TRX1918

Overview

The Traxxas 18-T Pinion Gear (48-pitch) Set TRX1918 is an essential performance tuning component for RC car enthusiasts across the UK who demand precision engineering and reliable operation. This genuine Traxxas pinion gear is designed for competitive drivers and serious hobbyists who understand that gear selection plays a critical role in optimising vehicle performance, acceleration characteristics, and overall speed delivery. Whether you are upgrading your ready to run RC car UK model or fine-tuning a competition-grade setup, this 48-pitch pinion gear offers the exact specifications needed to achieve your desired performance envelope.

Pinion gears are fundamental drivetrain components that work in concert with your RC car's spur gear to determine your vehicle's top speed and acceleration profile. By selecting the correct pinion tooth count, you can tailor your RC car's performance to match specific track conditions, racing formats, or driving preferences. The Traxxas 18-tooth configuration provides an excellent balance between acceleration and maximum speed, making it suitable for a variety of RC rally cars, electric RC vehicles, and competitive racing applications. Traxxas has built a reputation for precision manufacturing and quality control, and this pinion gear exemplifies those values with its hardened steel construction and precision bore.

This product is compatible with specific Traxxas Ford Fiesta ST Rally models, including both the BL-2S Rally Car and VXL variants, making it an ideal replacement or upgrade component for owners of these vehicles. The included set screw mechanism ensures secure fastening to your motor shaft, eliminating the risk of gear slippage during aggressive driving or high-speed operation. For RC enthusiasts in the UK seeking reliable, authentic Traxxas performance parts, this pinion gear represents a trusted choice from an established manufacturer with decades of experience in the RC hobby industry.

Key Features

• 48-Pitch Precision Specification — The 48-pitch (48DP) standard measurement ensures this gear meshes perfectly with compatible Traxxas spur gears, delivering smooth engagement and efficient power transfer from your brushless motor to the drivetrain without unwanted noise, vibration, or mechanical wear.
• 18-Tooth Configuration — The 18-tooth count has been engineered to provide a balanced performance profile that delivers both responsive acceleration and competitive top-end speed, making it an excellent all-purpose choice for rally racing, circuit racing, and general performance driving without sacrificing either acceleration or maximum velocity.
• Precision 3.2mm Bore — The accurately machined 3.2mm bore diameter is designed to fit securely onto standard Traxxas motor shafts, ensuring concentricity and eliminating runout that could cause vibration, noise, or premature wear to your motor bearings and drivetrain components.
• Hardened Steel Construction — Traxxas manufactures this pinion gear from hardened steel material that resists tooth wear, maintains dimensional accuracy throughout extended use, and provides the durability needed for competitive racing or regular bashful driving without degradation of performance characteristics.
• Set Screw Fastening System — The included set screw mechanism provides secure attachment to your motor shaft, preventing unwanted gear slip during aggressive acceleration or high-speed operation, which is essential for maintaining reliable power delivery and avoiding catastrophic drivetrain failure during critical moments in competition.
• Genuine Traxxas Component — This is an authentic factory-manufactured Traxxas part, ensuring compatibility with your vehicle, quality control standards, and access to genuine technical support from Traxxas-authorised retailers across the UK.

Technical Performance

The Traxxas 18-T Pinion Gear operates at the critical interface between your brushless electric motor and your vehicle's spur gear, making it one of the most important performance tuning variables available to RC car owners. The 48-pitch specification is an industry-standard measurement that ensures compatibility with Traxxas spur gears designed to the same specification, allowing for precise mesh patterns that minimise backlash whilst maintaining smooth engagement. The 18-tooth configuration represents a versatile middle-ground selection that balances the competing demands of acceleration and top speed; lower tooth counts (like 16-tooth or 17-tooth) favour acceleration and torque at the expense of maximum speed, whilst higher counts (19-tooth or 20-tooth) prioritise top speed but require more motor torque and generate additional heat. The precision 3.2mm bore is manufactured to exacting tolerances using CNC equipment, ensuring that the gear runs concentrically on your motor shaft without vibration or runout that could accelerate wear rates or create annoying noise during operation. Hardened steel construction provides superior longevity compared to softer materials, maintaining tooth profile integrity even after hundreds of hours of high-speed operation, repeated acceleration cycles, and the mechanical stresses inherent in competitive RC racing environments. The set screw fastening system is simple yet effective, allowing tool-free or minimal-tool installation whilst providing security against slippage during hard acceleration or sudden deceleration events. For UK RC enthusiasts running brushless electric systems, this pinion gear will deliver consistent performance characteristics across varying ambient temperatures, battery voltages (from 2S to 6S LiPo systems), and driving conditions, making it a universally useful performance upgrade or replacement component.

What's in the Box

• Traxxas 18-T Pinion Gear (48-pitch) with set screw

Frequently Asked Questions

• What is a pinion gear and why do I need one for my RC car? — The pinion gear is a small gear mounted on your RC car's motor shaft that meshes with a larger spur gear on the main drivetrain, transferring rotational power from the motor to the wheels. The tooth count of your pinion gear directly determines your vehicle's top speed and acceleration characteristics; selecting the correct pinion allows you to optimise your RC car's performance for specific track conditions, racing formats, or personal driving preferences, making it one of the most important performance tuning components available to RC enthusiasts.
• What is the difference between 48-pitch and other pitch specifications? — Pitch refers to the standardised measurement system for gear teeth; 48-pitch gears have smaller teeth and finer mesh characteristics compared to 32-pitch gears, which are larger and more robust. The 48-pitch specification is the most common standard in modern RC racing vehicles, particularly for 1/10-scale electric RC cars, and ensures compatibility with spur gears designed to the same specification. Using mismatched pitch gears will result in poor mesh, excessive backlash, noise, and premature wear.
• Which Traxxas vehicles are compatible with the TRX1918 pinion gear? — This pinion gear is specifically designed for compatibility with Traxxas Ford Fiesta ST Rally models, including the BL-2S Rally Car (TRX74154-4-RED in red) and the VXL variant (TRX74276-4-GRN in green), as well as other Traxxas vehicles equipped with 48-pitch gearing systems and 3.2mm motor shafts. Always verify compatibility with your specific vehicle before installation to ensure proper fit and performance.
• How do I install the pinion gear set screw? — The pinion gear features a machined flat on the bore that aligns with a set screw slot, allowing you to tighten the set screw firmly against the flat face of your motor shaft to prevent rotational slippage. Simply slide the gear onto your motor shaft, align the bore flat with the shaft flat, insert the set screw through the gear bore, and tighten securely using a small hex wrench or Allen key; do not over-tighten, as this may strip the screw or damage the motor shaft.
• What tooth count pinion gears does Traxxas offer? — Traxxas manufactures a comprehensive range of 48-pitch pinion gears in various tooth counts, typically ranging from 16-tooth through 20-tooth and beyond, allowing you to select the precise ratio that matches your driving style, local track characteristics, and motor specifications. Lower tooth counts favour acceleration, whilst higher tooth counts deliver greater top speed; the 18-tooth configuration provides an excellent balanced option suitable for mixed-use driving.
• Can I use this pinion gear on non-Traxxas RC cars? — Whilst the 48-pitch specification and 3.2mm bore are industry-standard measurements used by many RC manufacturers, this pinion gear is specifically engineered for Traxxas vehicles with compatible spur gear spacing and drivetrain geometry. Installing it on non-Traxxas vehicles may result in improper mesh, compatibility issues, or performance problems; always consult your vehicle's documentation or contact your retailer to confirm compatibility before purchasing.
• How often should I replace my pinion gear? — The service life of a pinion gear depends on driving intensity, maintenance practices, gear mesh condition, and the quality of your spur gear. Regular inspection for tooth wear, chipped teeth, or damage is recommended; replace the pinion gear if you observe visible wear, noise changes, or performance degradation, which typically occurs after hundreds of operating hours in competitive racing scenarios or after visible damage.

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 18-T Pinion Gear (48-pitch) Set TRX1918 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.