AS91901

Overview

The Team Associated RC10B6.4 -1mm Scrub Caster and Steering Blocks (AS91901) are essential precision components designed for competitive RC buggy racing. These replacement parts are engineered to enhance the steering geometry and handling characteristics of your Team Associated RC10B6.4 platform, one of the most respected 1/10 scale competition buggies in the UK RC car scene. Whether you're a seasoned racer fine-tuning your setup for track dominance or an enthusiast looking to upgrade your RC buggy's performance, these genuine Team Associated steering blocks deliver the precision and quality you need to stay competitive.

Manufactured by Team Associated, a brand synonymous with championship-winning RC vehicles and components, the AS91901 caster and steering blocks represent the gold standard in aftermarket buggy parts. The -1mm scrub specification allows you to adjust your buggy's Ackermann geometry and steering response, critical parameters that directly affect cornering speed, entry stability and overall handling feel. These blocks are compatible with the RC10B6.4 and share fitment across the broader B6.4 platform, making them a versatile upgrade for teams running these proven competition chassis.

Available now in UK stock at RC Model Shop, these steering blocks are an investment in precision engineering that will help you extract every tenth of a second from your RC buggy on the track. The -1mm specification offers a more aggressive steering geometry compared to standard specifications, allowing experienced drivers to dial in additional responsiveness and feel through the steering inputs.

Key Features

• -1mm Scrub Specification — This measurement defines the caster angle geometry and scrub characteristics of your steering system, allowing you to fine-tune how your RC buggy responds to steering inputs and how the front wheels behave through corners, ultimately affecting lap times and consistency.
• Genuine Team Associated Manufacturing — These components are manufactured to exacting standards by Team Associated, ensuring perfect fitment with your RC10B6.4 chassis and compatibility with other OEM Team Associated parts used in competitive racing.
• Steering Block and Caster Assembly — The complete assembly includes both the steering blocks that mount to your suspension arms and the caster blocks that determine your wheel alignment, providing a comprehensive solution for steering geometry optimization.
• Precision Engineered for Competition — Designed specifically for competitive RC buggy racing, these blocks are engineered with the tolerances and precision required for consistent performance at the highest levels of RC motorsport in the UK and beyond.
• Direct Compatibility with RC10B6.4 — These parts are specifically designed for the Team Associated RC10B6.4 chassis, ensuring perfect fitment and eliminating guesswork when upgrading or replacing worn steering components on your competition buggy.
• Easy Trackside Replacement — As a modular component assembly, these steering blocks can be quickly replaced at the track if damaged during competition, allowing you to get back to running and stay competitive throughout your racing day.

Technical Performance

The Team Associated RC10B6.4 -1mm Scrub Caster and Steering Blocks represent precision engineering at its finest, utilising high-quality materials and exacting manufacturing tolerances that Team Associated has refined through years of competition experience. The -1mm specification directly influences your buggy's Ackermann percentage and steering geometry, parameters that professional RC drivers spend considerable time optimising to match track conditions and driving style. The steering blocks house the pivot points where your suspension arms connect to the steering linkage, whilst the caster blocks determine the angle at which your wheels sit relative to the vertical plane. By specifying these components at -1mm, Team Associated has created a geometry that suits aggressive, responsive steering characteristics preferred by experienced drivers who want maximum feedback and steering response. The assembly is engineered to maintain consistent geometry under the high lateral loads experienced during cornering at speed, ensuring your RC buggy maintains predictable handling characteristics lap after lap. These components are essential for anyone running a Team Associated RC10B6.4 in competitive racing, whether you're competing in national championships or local club events across the UK. The quality of these OEM components ensures they integrate seamlessly with other Team Associated Factory Team and standard parts, creating a cohesive, balanced chassis setup that responds predictably to setup changes and driving inputs.

What's in the Box

• Team Associated RC10B6.4 -1mm Scrub Caster and Steering Blocks assembly

What You Need to Complete

• Team Associated RC10B6.4 chassis (if not already owned)
• Basic tools for steering block installation (standard RC hex drivers and screwdrivers)
• Your existing RC10B6.4 setup

Frequently Asked Questions

• What does the -1mm specification mean on these caster and steering blocks? — The -1mm measurement refers to the scrub radius and caster angle geometry built into these blocks. This specification influences how your RC buggy's wheels respond to steering inputs and how aggressively the front suspension geometry changes through corners. A -1mm specification provides more responsive steering characteristics compared to 0mm or +1mm alternatives, making it ideal for experienced drivers who want maximum steering feel and feedback on technical, tight tracks. The specification affects Ackermann percentage, which determines how much additional steering angle the inside wheel receives compared to the outside wheel during cornering.
• Will these steering blocks fit my RC buggy? — These blocks are specifically designed for the Team Associated RC10B6.4 and compatible vehicles within the B6.4 platform. It's essential to verify your exact chassis model before ordering. The part number AS91901 is the correct specification for RC10B6.4 compatibility. If you own a different Team Associated model such as the B6.3 FT or B74, you may require different components. Consult your RC10B6.4 manual or contact our knowledgeable team at RC Model Shop for clarification on fitment.
• Are these genuine Team Associated parts? — Yes, these are genuine original Team Associated components manufactured to the same specifications used by Team Associated Factory Team racing programmes. Buying genuine OEM parts ensures perfect fitment, consistent quality and long-term reliability compared to aftermarket alternatives. As an authorised Team Associated retailer, RC Model Shop stocks only genuine components.
• When should I replace my steering blocks? — Steering blocks should be inspected regularly for wear, damage or looseness, particularly if you've experienced crashes or intense racing. Signs that replacement is needed include play in the steering, inconsistent handling, or visible cracks and damage to the blocks themselves. Replacing worn steering blocks restores precise geometry and handling characteristics, improving lap times and driving consistency. Many competitive racers replace steering blocks as part of regular maintenance schedules.
• How do I install these steering blocks? — Installation requires removing your existing steering blocks and suspension arms from your RC10B6.4 chassis and installing the new Team Associated blocks in their place. This is a straightforward operation for anyone with basic RC knowledge and tools. If you're unfamiliar with chassis maintenance, our experienced team at RC Model Shop can provide guidance or your RC10B6.4 manual contains detailed assembly instructions.
• Are there other caster block specifications available? — Yes, Team Associated offers steering blocks and caster blocks in different specifications including 0mm and +1mm scrub options. The -1mm specification provided in this product (AS91901) suits drivers who want maximum steering response and feel. If you prefer less aggressive steering geometry, alternative specifications may be available. Contact our team to discuss which specification suits your driving style and track conditions.

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 RC10B6.4 -1MM Scrub Caster and Steering Blocks AS91901 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.