Tamiya TT-02 High Speed Gear Set 68T Spur Gear Aluminium Mount TAM54500

Overview

The Tamiya TT-02 High Speed Gear Set 68T (TAM54500) is an essential hop-up option for TT-02 chassis owners looking to maximise the performance and versatility of their RC car UK setup. This professionally engineered transmission upgrade replaces the standard 70T spur gear with a precision 68T alternative, opening up a wider range of gear ratio possibilities that allow you to fine-tune your vehicle's acceleration and top speed characteristics. Whether you're a seasoned RC enthusiast building a competition-grade racer or a hobbyist looking to enhance your existing TT-02 model, this high-speed gear set delivers the upgrade quality that Tamiya is recognised for worldwide.

Built with meticulous attention to detail, this gear set features a newly-designed aluminium spur gear mount that provides superior durability and precision compared to standard components. The inclusion of a professional-grade 7x5x11.4mm spacer and stainless steel shaft ensures that your transmission operates smoothly and reliably, whether you're running on tarmac, gravel or mixed terrain. This is a genuine Tamiya part designed specifically for the TT-02 chassis family, making it compatible with an extensive range of TT-02-based models including rally cars, road cars, and specialist variants. RC car enthusiasts in the UK will appreciate how straightforward this upgrade is to install, transforming your driving experience without requiring extensive mechanical knowledge.

What sets this gear set apart is its ability to unlock performance potential that the standard kit simply cannot achieve. By enabling gear ratios ranging from 9.82:1 to 6.55:1 (compared to the kit-standard 70T gear which allows only 11.38 to 7.28), you gain the flexibility to optimise your setup for your specific driving style and track conditions. This makes the TT-02 High Speed Gear Set 68T an intelligent investment for anyone serious about getting the most out of their brushless RC car UK setup.

Key Features

• 68T Spur Gear — The precision-engineered 68T spur gear enables a broader range of gear ratio settings from 9.82:1 to 6.55:1, giving you the flexibility to achieve faster top speeds or improved acceleration depending on your driving requirements and track layout.
• Newly-Designed Aluminium Spur Gear Mount — The redesigned aluminium mount provides superior strength, precision and durability compared to standard plastic alternatives, ensuring your transmission remains reliable during demanding driving sessions and competitive racing.
• FF-03 PRO Specifications — This component uses FF-03 PRO spur gear engineering standards, which means you're getting professionally-engineered components that meet Tamiya's exacting quality control standards for racing applications.
• 7x5x11.4mm Precision Spacer — The included spacer is manufactured to exact tolerances, ensuring perfect gear mesh and smooth operation throughout your transmission's lifespan, reducing wear and maintaining consistent performance.
• Stainless Steel Shaft — The 2x9mm stainless steel shaft resists corrosion and provides excellent strength-to-weight ratio, ensuring long service life even in wet UK conditions or after exposure to salt water environments.
• Wide Compatibility — This gear set is compatible with all major TT-02 chassis variants, including the TT-02BR, TT-02D, TT-02RR, TT-02 Type-SR, TT-02 Type-S, TT-02 Type-SRX and numerous pre-built TT-02 scale models, making it a universal performance upgrade.
• Expandable Gear Options — For even greater versatility, this set can be used in conjunction with a separately-sold 64T spur gear, allowing you to achieve even lower gear ratios for maximum acceleration when racing on tight, technical courses.
• Complete Installation Package — Every component needed for installation is included in the box, including the mount, spacer and shaft, meaning there's no need to source additional parts before you can transform your TT-02's performance.

Technical Performance

The Tamiya TT-02 High Speed Gear Set 68T represents a significant performance upgrade for any TT-02 chassis owner seeking to optimise their transmission setup. The 68T spur gear configuration provides a fundamental shift in how your RC car accelerates and reaches top speed, with gear ratios ranging from 9.82:1 to 6.55:1. This is notably different from the kit-standard 70T spur gear, which limits you to ratios between 11.38:1 and 7.28:1. In practical terms, the lower numerical ratios available with the 68T gear mean you can achieve substantially higher top speeds for high-speed circuit racing or speed runs, whilst still maintaining the ability to run higher ratios for acceleration-focused driving styles. The newly-designed aluminium spur gear mount is engineered for precision engagement with your motor pinion, eliminating play and backlash that can occur with inferior components, resulting in smoother power delivery and reduced wear on drivetrain components. The stainless steel 2x9mm shaft provides exceptional corrosion resistance and dimensional stability, critical for maintaining gear mesh consistency through extended driving sessions. The 7x5x11.4mm spacer is precisely manufactured to ensure correct positioning of your spur gear relative to the motor pinion, and incorrect spacing is one of the most common causes of premature gear wear in RC vehicles. With this complete system, you're assured that every element has been engineered as a cohesive unit, guaranteeing optimal performance characteristics whether you're running a brushless or brushed motor setup. This is professional-grade transmission engineering for serious RC car UK enthusiasts and competition drivers.

What's in the Box

• FF-03 PRO 0.6 spur gear (68T) — The heart of this upgrade, precision-engineered for smooth engagement and durability
• TT-02 spur gear mount — Newly-designed aluminium component providing superior rigidity and precision
• 7x5x11.4mm spacer — Manufactured to exact tolerances for perfect gear mesh alignment
• 2x9mm stainless steel shaft — Corrosion-resistant drive shaft for reliable power transmission

Frequently Asked Questions

• What gear ratios can I achieve with the 68T spur gear? — The 68T spur gear enables gear ratio settings ranging from 9.82:1 to 6.55:1, providing significantly more flexibility than the kit-standard 70T gear which allows only 11.38:1 to 7.28:1. This means you can achieve higher top speeds for racing or adjust acceleration characteristics to suit your specific driving style and track conditions.
• Is this suitable for beginners? — Whilst this is a straightforward installation for anyone with basic mechanical knowledge, it is primarily an intermediate-level performance upgrade rather than a beginner component. If you're new to RC cars, you may find the standard TT-02 kit performs excellently without upgrades. However, if you're progressing beyond basic driving and want to fine-tune your setup for better performance, this is an ideal first transmission modification.
• Which TT-02 models is this compatible with? — This gear set is compatible with an extensive range of TT-02 chassis variants, including the TT-02, TT-02 Type-S, TT-02 Type-SR, TT-02BR, TT-02D, TT-02RR, TT-02 Type-SRX and all pre-built TT-02-based scale models such as rally cars, road cars and specialist variants. This makes it a universal upgrade for the entire TT-02 family.
• Can I use this with other spur gears? — Yes, this gear set can be used in conjunction with other separately-sold spur gears, including the 64T option, which allows you to achieve even lower gear ratios for maximum acceleration on technical courses. This modularity is one of the key advantages of the TT-02 platform.
• What is the difference between the 68T and the standard 70T gear? — The 68T gear provides a lower tooth count compared to the 70T standard gear, which directly results in lower gear ratios and higher top speed potential. The 68T enables ratios from 9.82:1 to 6.55:1, whilst the 70T limits you to 11.38:1 to 7.28:1. If your goal is maximum top speed for racing, the 68T is the ideal choice.
• Do I need any special tools to install this? — Standard RC car maintenance tools are typically sufficient for installation, such as hex drivers and screwdrivers. No specialist equipment is required, making this a straightforward DIY upgrade for most RC enthusiasts.
• What makes the aluminium gear mount better than standard components? — The newly-designed aluminium spur gear mount provides superior rigidity compared to plastic alternatives, eliminating flex and play during high-load racing conditions. This ensures consistent gear mesh engagement with your motor pinion, reducing backlash and wear whilst improving overall transmission efficiency and responsiveness.
• Is this part genuine Tamiya? — Yes, this is an official Tamiya hop-up option component (Item No. 54500) manufactured to Tamiya's professional racing standards. You're purchasing genuine, OEM Tamiya engineering rather than third-party alternatives.

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 Tamiya Tt-02 High Speed Gear Set 68T TAM54500 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.