Fastrax 4mm Throttle Ball Socket RC Vehicle Linkage Connector FAST42

Overview

The Fastrax 4mm Throttle Ball Socket (FAST42) is an essential replacement part for RC enthusiasts and serious hobbyists across the UK who demand reliability and precision in their radio-controlled vehicles. This small but crucial component is designed to provide a secure mechanical connection between your throttle linkage and servo, ensuring smooth and responsive throttle control during high-performance driving sessions. Whether you're operating an RC car in the UK, maintaining a fleet of competition vehicles, or simply replacing worn components on your existing setup, this Fastrax ball socket delivers the quality and durability you expect from a recognised manufacturer in the RC hobby sector.

Ball sockets are fundamental to RC vehicle operation, as they allow for precise angular movement whilst maintaining a tight, wobble-free connection. The 4mm size of this component makes it compatible with a wide range of RC vehicles and servo linkage systems, making it an excellent choice for anyone seeking a universal replacement part. As part of the extensive Fastrax range of option parts and upgrades, this ball socket represents genuine, quality engineering from a brand trusted by RC modellers worldwide. For those maintaining their own vehicles, having quality replacement ball sockets in your spare parts box is simply good practice.

RC Model Shop stocks the full range of Fastrax option parts and accessories, ensuring you can source exactly what you need to keep your vehicles running at peak performance. This particular component is ideal for those undertaking regular maintenance, experimenting with different throttle linkage configurations, or simply replacing a damaged socket that has developed excessive wear. The affordable price point means you can stock spares without significant outlay, giving you peace of mind during your RC driving sessions across the UK.

Key Features

• 4mm Socket Size — The 4mm measurement ensures compatibility with standard servo linkage systems used across a vast majority of RC vehicles, from crawlers to on-road racers, making this a genuinely universal replacement component that works with multiple vehicle types and manufacturers.
• Genuine Fastrax Engineering — Manufactured by Fastrax, a recognised brand in the RC hobby, this ball socket benefits from proven engineering standards and quality control that serious modellers have relied upon for years when upgrading or maintaining their vehicles.
• Throttle-Specific Design — Optimised specifically for throttle linkage applications, this ball socket is engineered to handle the mechanical stresses and movement ranges unique to throttle control systems, ensuring consistent response and longevity in your RC setup.
• Reliable Mechanical Connection — The ball socket design allows smooth angular movement whilst eliminating slop and wobble, which is essential for precise throttle control and preventing unpredictable vehicle behaviour during acceleration and deceleration.
• Affordable Spare Part — At just £1.99, this component represents excellent value for money, making it sensible to keep several spares on hand for quick repairs and maintenance without significant expense to your hobby budget.
• Wide Vehicle Compatibility — As a universal 4mm ball socket, this part works across numerous RC vehicle categories including crawlers, buggies, trucks, and other platform types, making it a genuinely useful component for collectors with multiple vehicles.

Technical Performance

The Fastrax 4mm Throttle Ball Socket represents precision-engineered mechanical design suitable for the demands of RC vehicle operation. The ball socket mechanism provides a critical pivot point within your throttle linkage system, allowing your servo to translate rotational movement into linear throttle control input with minimal mechanical losses and maximum precision. The 4mm size has been standardised across the industry for compatibility with the vast majority of servo linkage systems and connection points found on modern RC vehicles. The socket geometry is designed to accommodate standard ball stud connectors, creating a strong yet flexible joint that can withstand the repeated mechanical stress of continuous throttle input during extended driving sessions. Built with durability in mind, this component is engineered to maintain its tolerance and performance across countless cycles of use, whether you're enjoying casual recreational driving or competitive RC racing. The material composition and manufacturing processes used by Fastrax ensure that the socket retains its precise fit and doesn't develop excessive wear that would compromise throttle response or introduce unpredictable slack into your linkage system. This is a fundamental spare part that contributes to overall vehicle reliability and performance consistency.

What's in the Box

• 1x Fastrax 4mm Throttle Ball Socket

Frequently Asked Questions

• What size ball socket do I need for my RC vehicle? — The Fastrax 4mm size is the industry-standard socket dimension used across the vast majority of RC vehicles sold in the UK market. Check your existing throttle linkage connections to verify the size, or consult your vehicle's manual to confirm compatibility before ordering.
• How often should I replace my ball socket? — Ball sockets typically show signs of wear after extended use, developing excess play or wobble in the connection. If you notice any slack in your throttle linkage, difficulty getting precise throttle control, or visible damage to the socket, replacement is advisable. Regular maintenance and inspection ensure your vehicle performs reliably.
• Is this suitable for competition-level RC racing? — Yes, as a Fastrax component, this ball socket meets the standards expected by serious RC enthusiasts and competition modellers. However, always verify that any replacement parts comply with the specific regulations of your chosen racing series or club before using them in competitive events.
• What vehicles use 4mm ball sockets? — The 4mm size is compatible with numerous RC vehicle types including crawlers, buggies, monster trucks, short course trucks, and various other platform types. It's a genuinely universal size used across multiple manufacturers, making this an excellent choice for anyone with multiple vehicles.
• Can I use this ball socket for other linkages besides throttle? — Whilst this component is specifically designed and optimised for throttle applications, the basic ball socket mechanism could potentially be used in other linkage systems. However, Fastrax designs this part specifically for throttle control characteristics, so using it in other applications may not deliver optimal performance.

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 Fastrax 4mm Throttle Ball Socket FAST42 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.