AS71221

Overview

The Team Associated RC10B7/T7 FT 3-Gear Gearbox Case in carbon is a precision-engineered replacement or upgrade component designed for serious RC enthusiasts and competitive racers in the UK who demand the highest performance from their 1/10 scale off-road machines. This carbon fibre gearbox housing is part of Team Associated's renowned Factory Team (FT) range, engineered to exacting standards and manufactured using premium carbon fibre construction. Whether you're upgrading an existing RC10B7 buggy or RC10T7 truck platform, or servicing your current drivetrain, this gearbox case delivers the durability and performance characteristics expected from one of the world's most respected RC manufacturers.

The 3-gear transmission layout represents a significant advancement in RC drivetrain technology, forming the backbone of the innovative RC10T7 truck platform's design philosophy. Team Associated's engineering team prioritised the development of this new 3-gear laydown transmission to reduce drag, transfer maximum power to the larger truck tyres, and provide responsive power delivery with reduced lag and lower operating temperatures. This makes the component ideal for spec racing and competitive environments where reliability and consistent performance are non-negotiable. The carbon fibre construction ensures exceptional stiffness whilst maintaining minimal weight, a critical combination for maintaining the vehicle's centre of gravity and overall handling characteristics.

Available as a standalone replacement or upgrade component through RC Model Shop, the AS71221 gearbox case is suitable for builders and racers looking to refresh their drivetrain components or transition between the buggy and truck platforms. The split case design creates a secure gear mesh whilst the integrated structure accommodates the large 10mm aluminium idler shaft and durable 54-tooth idler gear, both of which are essential components in the transmission assembly. If you're building a high-performance RC car in the UK or are an experienced RC enthusiast seeking to optimise your 1/10 scale buggy or truck, this Factory Team component represents proven performance engineering.

Key Features

• Carbon Fibre Construction — The gearbox case is manufactured from premium carbon fibre material, providing exceptional rigidity and stiffness whilst keeping weight to an absolute minimum. This rigid structure ensures consistent gear mesh alignment and reduces flex-induced power loss during aggressive acceleration and cornering, which directly translates to improved performance on both carpet and outdoor dirt circuits throughout the UK.
• 3-Gear Laydown Transmission Design — The revolutionary 3-gear transmission layout was specifically engineered by Team Associated to reduce drag throughout the drivetrain system and maximise power transfer to the wheels. The laydown configuration optimises the mounting arrangement, creating a more efficient power path and reducing parasitic losses compared to traditional transmission designs, resulting in snappier throttle response and reduced lag during acceleration.
• Split Case Design — The innovative split case construction creates a secure, repeatable gear mesh that can be easily disassembled for maintenance, cleaning, and component replacement. This design philosophy ensures long-term reliability whilst allowing racers and builders to service their transmissions without requiring specialised tools or extensive downtime between races.
• 10mm Aluminium Idler Shaft Integration — The large-diameter 10mm aluminium idler shaft is integrated directly into the transmission structure, providing enhanced stability and durability compared to smaller diameter alternatives. This robust shaft design works in conjunction with the 54-tooth idler gear and 10x15mm idler bearings to ensure smooth, consistent rotation and extended component lifespan.
• 54-Tooth Idler Gear with Premium Bearings — The transmission features a substantial 54-tooth idler gear paired with high-quality 10x15mm idler bearings, delivering exceptional durability and smooth power delivery. This combination reduces noise, minimises vibration, and ensures the transmission can handle the demanding power requirements of modern brushless motors without premature wear.
• Reduced Operating Temperatures — The optimised 3-gear design reduces friction and drag within the transmission, resulting in significantly lower operating temperatures compared to traditional transmission layouts. Cooler running components mean extended lifespan, more consistent performance throughout a race day, and reduced risk of thermal failure during intense competition.
• RC10B7 and RC10T7 Compatibility — The gearbox case is designed to retrofit the Team Associated RC10B7 buggy platform whilst being fully integrated into the new RC10T7 truck design. This cross-platform compatibility means builders can share components between buggy and truck builds, reducing costs and simplifying maintenance for racers who campaign multiple vehicle types.
• Factory Team Performance Specification — As a Factory Team component, this gearbox case meets the exacting standards set by Team Associated's race-proven engineering team and is utilised by professional drivers competing at the highest levels of RC racing worldwide. Choosing Factory Team parts ensures you're using components validated through real-world competitive racing.
• Responsive Power Delivery — The combination of the 3-gear layout, integrated idler shaft, and carbon fibre case creates a transmission system that delivers instantaneous throttle response with minimal lag. This responsiveness is essential for competitive racing, allowing drivers to modulate power delivery precisely and maintain competitive lap times.

Technical Performance

The Team Associated RC10B7/T7 FT 3-Gear Gearbox Case represents the pinnacle of modern RC transmission engineering, developed through Team Associated's commitment to combining low centre of gravity design with exceptional durability and adjustability. The carbon fibre construction provides the structural rigidity necessary to maintain precise gear alignment whilst operating under the extreme stresses of competitive off-road racing. The 3-gear transmission layout was a primary engineering focus for the RC10T7 platform development, with designers specifically targeting reduced drag and enhanced power transfer efficiency. This transmission architecture integrates a large 10mm aluminium idler shaft into the overall case structure, providing a more robust and stable foundation than traditional designs. The 54-tooth idler gear operates on quality 10x15mm idler bearings, ensuring smooth, noise-free operation even during high-load racing conditions. The split case design allows for tool-free disassembly and reassembly, making routine maintenance and cleaning straightforward for racers and serious hobbyists. Operating temperature reductions of several degrees compared to earlier transmission designs contribute to extended component lifespan and more stable performance characteristics throughout extended race days. The gearbox case retrofits Team Associated RC10B7 buggy platforms through a conversion kit approach, offering existing owners the opportunity to upgrade to the newer 3-gear architecture. This forward-compatibility thinking is typical of Team Associated's design philosophy, ensuring that older vehicles can benefit from the latest drivetrain innovations. The precise manufacturing tolerances and premium materials used throughout ensure that the gearbox case will perform consistently from the first outing through hundreds of competitive runs, making it a reliable choice for UK-based RC racers and serious hobbyists who demand the best performance from their 1/10 scale off-road vehicles.

What's in the Box

• Team Associated RC10B7/T7 FT 3-Gear Gearbox Case in carbon fibre
• Component ready for integration into RC10B7 buggy or RC10T7 truck platforms

What You Need to Complete

• Motor and ESC (electronic speed controller) for the RC vehicle
• LiPo battery suitable for your chosen motor specification
• Radio control system and receiver compatible with your build
• Servo for steering control
• Lexan body shell and paint
• Off-road tyres appropriate for your terrain
• 3-Gear Conversion Kit (part AS71220) if retrofitting to RC10B7 platforms
• RC10B7 Arm Mount C for 3-Gear Gearbox in aluminium (part AS71218) for proper mounting

Frequently Asked Questions

• Is the Team Associated RC10B7/T7 FT 3-Gear Gearbox Case suitable for beginners? — This component is recommended for experienced builders and competitive racers rather than beginners. Installing a gearbox case requires solid mechanical knowledge, access to proper tools, and understanding of transmission assembly procedures. Beginners are advised to consider ready-to-run RC vehicles or to seek guidance from experienced RC enthusiasts before attempting gearbox case installation. If you're new to RC, the team at RC Model Shop can advise on suitable starter platforms.
• What is the difference between the 3-gear transmission and earlier Team Associated transmission designs? — The 3-gear laydown transmission was engineered specifically to reduce drag, lower operating temperatures, and improve power transfer efficiency compared to traditional transmission layouts. The integrated 10mm aluminium idler shaft and 54-tooth idler gear combination provides enhanced durability and smoother operation. The split case design also improves serviceability, allowing racers to maintain their transmissions more easily without specialised equipment.
• Can I retrofit this 3-gear gearbox case to my existing RC10B7 buggy? — Yes, Team Associated designed the 3-gear transmission to retrofit RC10B7 buggies through a conversion approach. You will require the 3-Gear Conversion Kit (part AS71220), the RC10B7 Arm Mount C for 3-Gear Gearbox (part AS71218), and associated hardware. Detailed installation instructions are available in the 3-Gear Conversion Kit Supplement documentation. This upgrade allows RC10B7 owners to benefit from the latest transmission technology without purchasing an entirely new vehicle.
• What maintenance does the gearbox case require? — The split case design allows for straightforward disassembly, inspection, cleaning, and reassembly. Team Associated recommends regular inspection of the idler gear and bearings for wear, especially after heavy use or racing. Periodic cleaning to remove dirt and debris will extend component lifespan. The transmission should be re-greased according to your local climate and racing frequency, typically every 5-10 hours of use.
• How does the carbon fibre construction benefit performance? — Carbon fibre provides exceptional stiffness-to-weight ratio, meaning the gearbox case maintains precise structural rigidity whilst adding minimal weight to your vehicle. This reduces flex during acceleration and cornering, ensuring consistent gear mesh alignment and maximum power transfer efficiency. The weight savings also contribute to better overall handling and centre of gravity positioning.
• Is this gearbox case compatible with both buggy and truck platforms? — The gearbox case is compatible with the RC10B7 buggy platform (via conversion kit) and is fully integrated into the RC10T7 truck design. This cross-platform compatibility makes it attractive for racers who campaign multiple vehicle types, as transmission components can be shared between builds.
• What tools are required for installation? — Standard RC hobby tools including hex keys, screwdrivers, and bearing pullers are typically required. Team Associated provides detailed assembly documentation, and the team at RC Model Shop can advise on specific tool requirements for your particular build or conversion project.

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 RC10B7/T7 FT 3-Gear Gearbox Case, Carbon AS71221 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.