Team Associated 72T 48DP Spur Gear for 1/10 RC Buggy RC10B4 RC10T4 AS9649

Overview

The Team Associated 72T 48DP Spur Gear (AS9649) is a precision engineered replacement component designed specifically for the RC10B4, RC10T4 and a comprehensive range of Team Associated 1/10 scale RC buggies and trucks. This high-quality spur gear represents an essential upgrade for anyone running brushless stock motors on their RC car in the UK, offering optimised gearing solutions that unlock the full potential of modern electric powertrains. Whether you're a competitive racer, weekend basher, or serious RC enthusiast, this genuine Team Associated part delivers the performance and reliability you demand from your RC buggy or truck setup.

Specifically engineered for brushless stock motor applications, the 72-tooth configuration with 48-pitch design provides the ideal gear reduction for 17.5, 13.5 and 10.5 brushless motors commonly used in competitive 1/10 scale RC racing. This spur gear is not just a replacement component—it's a performance optimisation tool that allows you to fine-tune your RC car's power delivery, acceleration, and overall handling characteristics. The reduced diameter design compared to standard alternatives enables the use of smaller pinion gears, which translates to better motor positioning, improved weight distribution, and more predictable handling on track.

As an authorised Team Associated parts supplier in the UK, RC Model Shop stocks this genuine AS9649 spur gear as part of our comprehensive inventory of RC spares and upgrades for serious hobbyists and racers. The quality engineering and precision manufacturing that Team Associated is recognised for worldwide is evident in every aspect of this component, making it the preferred choice for drivers who demand excellence from their RC equipment.

Key Features

• 72-Tooth Precision Gearing — This spur gear features exactly 72 teeth designed to work in harmony with smaller pinion gears, optimising your overall gear ratio for brushless stock motor applications and delivering consistent power delivery across a range of driving conditions.
• 48-Pitch Specification — The 48 diametral pitch (48DP) rating ensures precise meshing with compatible pinion gears, maintaining mechanical efficiency and reducing wear over extended use during both casual running and competitive racing.
• Reduced Diameter Design — Compared to standard larger spur gears, this component features a reduced overall diameter that enables the use of smaller pinion gears, directly contributing to improved motor positioning and enhanced vehicle balance.
• Forward Motor Positioning — By allowing smaller pinion gears to be used, this 72T spur gear shifts your motor forward within the chassis, improving weight distribution, enhancing balance and delivering more predictable handling characteristics on the track or trail.
• Brushless Stock Motor Optimisation — Specifically designed for 17.5, 13.5 and 10.5 brushless stock motors, this gear provides the ideal torque and speed characteristics for these popular racing motors used across competitive 1/10 scale RC racing in the UK and worldwide.
• Multi-Platform Compatibility — This single component fits across Team Associated's RC10B4, RC10T4, and numerous other 1/10 buggy and truck platforms including the B44, B5, B5M, T5M, SC5M, B6 and B6D, making it a versatile spare for serious RC enthusiasts with multiple vehicles.
• Genuine Team Associated Manufacturing — As an original equipment manufacturer part, this spur gear meets Team Associated's exacting quality standards, ensuring reliability and performance that aftermarket alternatives simply cannot match.
• 72T and 75T Options Available — While this listing covers the 72-tooth version, a 75T option is also available in 48-pitch specification, allowing you to fine-tune your gearing ratios to suit different track conditions, motor sizes and driving styles.
• Compatible with Losi XXX Platform — With the addition of optional parts (AS9603 Slipper Pad and AS9604 Slipper Hub Outer - 2 required), this spur gear can also be fitted to Losi XXX and XXX-T RC vehicles, expanding its utility beyond Team Associated platforms.

Technical Performance

The AS9649 spur gear represents the pinnacle of precision engineering for 1/10 scale RC car gearing systems. Manufactured by Team Associated with the same attention to detail and quality control applied to their world-championship-winning vehicles, this component is precision-cut to exacting tolerances to ensure smooth, quiet meshing with compatible pinion gears. The 72-tooth design at 48-pitch specification provides the mathematical foundation for optimised power delivery when paired with brushless stock motors in the 17.5, 13.5 and 10.5 KV range. The reduced diameter design is a crucial performance feature—by enabling the use of smaller diameter pinion gears, it allows the motor to sit further forward in the chassis, dramatically improving the weight distribution characteristics of your RC buggy or truck. This forward motor position directly enhances handling predictability, reduces understeer, and improves traction by optimising the weight bias during acceleration and braking. The precision-cut teeth ensure minimal backlash, which translates to crisp throttle response and improved power transfer from motor to wheels. Whether you're running competitive qualifying rounds at your local club track or enjoying high-speed bashing at the weekend, this spur gear delivers the reliability and performance that serious RC enthusiasts demand. The component integrates seamlessly with Team Associated's modular chassis design, making installation straightforward for anyone with basic mechanical aptitude and a few standard tools.

What's in the Box

• 1x Team Associated 72T 48DP Spur Gear (AS9649)

What You Need to Complete

• Compatible pinion gear (size varies depending on your chosen gear ratio and motor KV rating)
• Your Team Associated RC10B4, RC10T4, B44, B5, B5M, T5M, SC5M, B6 or B6D RC car or truck
• For Losi XXX/XXX-T compatibility: AS9603 Slipper Pad and AS9604 Slipper Hub Outer (2 units required)

Frequently Asked Questions

• Will this 72T spur gear fit my Team Associated RC buggy? — This spur gear is designed for the RC10B4, RC10T4, B44, B5, B5M, T5M, SC5M, B6 and B6D. Check your specific model number against this compatibility list. If you own any of these vehicles, the AS9649 will fit directly without modification. For Losi XXX or XXX-T models, you'll need the additional slipper pad (AS9603) and two slipper hub outer components (AS9604).
• What pinion gear size should I use with this 72T spur gear? — The 72-tooth configuration allows for the use of smaller diameter pinion gears compared to standard larger spur gears. Your specific pinion size will depend on your desired overall gear ratio and your motor's KV rating. For detailed gearing guidance, we recommend consulting the Team Associated manual for your specific vehicle model or speaking with our expert team at RC Model Shop.
• What motor sizes work best with this spur gear? — This 72T spur gear is specifically optimised for brushless stock motors rated at 17.5, 13.5 and 10.5 KV. These are the most popular stock motor classes for competitive 1/10 scale RC racing in the UK, making this spur gear an ideal choice for anyone running these motor sizes.
• Is this suitable for beginners? — This is a replacement spur gear component designed for drivers who already own a compatible Team Associated RC vehicle. It's not a standalone product but rather a performance upgrade or maintenance spare for existing RC cars. If you're new to RC and don't yet own a compatible vehicle, you might want to start with a ready-to-run RC buggy kit or truck. However, once you have your RC car, swapping spur gears is a straightforward modification that even beginners can perform with basic tools.
• Why would I need to replace or upgrade my spur gear? — Spur gears can wear over time with intensive use, or you might want to change your gearing ratio to suit different track conditions, driving styles, or motor selections. Upgrading to a genuine Team Associated spur gear from aftermarket alternatives ensures you're getting precision engineering, consistent quality, and reliable performance. The 72T version with its reduced diameter offers specific advantages including improved motor position, better weight distribution, and the ability to use optimised pinion gear sizes.
• Is this the same as a standard 72T spur gear? — While the tooth count is 72, this spur gear features Team Associated's specific reduced diameter design for their 1/10 platform vehicles. This isn't a generic 72-tooth gear—it's engineered specifically for the RC10B4, RC10T4 and related models, with particular attention to enabling optimal motor positioning and pinion gear sizing. The precision manufacturing and quality control that Team Associated applies to this component exceeds typical aftermarket alternatives.
• What's the difference between the 72T and 75T options? — Both versions are available in 48-pitch specification. The 72-tooth version offers a slightly higher top speed and lower torque ratio, making it ideal for tracks with longer straightaways or when running lower KV brushless motors. The 75-tooth option provides slightly more torque and lower top speed, benefiting drivers on tight, technical tracks or those running higher KV motors. Your choice depends on your specific track layout, motor selection, and driving style.
• Does this work with the Losi XXX? — Yes, with the addition of optional components. The AS9649 spur gear can be fitted to the Losi XXX and XXX-T platforms when used alongside the AS9603 Slipper Pad and two units of the AS9604 Slipper Hub Outer. These additional parts are sold separately and enable compatibility with Losi's platform.

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 TEAM ASSOCIATED RC10B4/T4/B44/B5/B5M T5M/SC5M/B6/B6D 72T 48DP SPUR GEAR AS9649 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.