AS81668

Overview

The Team Associated RC8B4.1 FT Rear Suspension Arm Inserts CF (AS81668) are precision-engineered carbon fibre upgrades designed specifically for the RC8B4.1 platform, one of the most competitive 1/10 scale off-road racing chassis available today. These Factory Team suspension arm inserts represent a straightforward yet highly effective tuning option for RC car enthusiasts and competitive racers across the UK who demand maximum performance from their vehicles. Whether you're competing at your local track or looking to elevate your RC car UK experience, these carbon fibre inserts deliver measurable improvements in handling and predictability on high-traction surfaces.

Manufactured from premium 2.0mm carbon fibre and precision CNC-routed to custom profiles that perfectly match the RC8B4.1 rear suspension arms, these inserts add crucial torsional stiffness to your chassis. This additional rigidity translates directly into more predictable grip characteristics, allowing drivers to push harder into corners with confidence and maintain consistent lap times. The symmetrical design means installation is straightforward, making these upgrades accessible to both experienced competitors and dedicated hobbyists who want to fine-tune their brushless RC car setup without requiring extensive mechanical knowledge.

If you're serious about extracting maximum performance from your RC8B4.1, these rear suspension arm inserts represent an essential upgrade. The improvement in torsional stiffness is particularly noticeable on high-grip indoor tracks and carpeted surfaces where precision handling becomes critical. RC Model Shop stocks genuine Team Associated Factory Team parts, ensuring you receive authentic components that maintain the integrity and performance characteristics of your investment.

Key Features

• 2.0mm Carbon Fibre Construction — These inserts are manufactured from premium 2.0mm carbon fibre material, which delivers exceptional strength-to-weight ratio whilst adding meaningful torsional stiffness to your rear suspension arms without adding unnecessary mass to your RC buggy.
• CNC-Routed Custom Profile — Each insert is precision CNC-routed and profiled specifically for the RC8B4.1 rear suspension arms, ensuring perfect fitment and optimal performance characteristics. This level of manufacturing precision is essential for competitive off-road racing where every fraction of a second counts.
• Symmetrical Design — The symmetrical design means these inserts work perfectly on either side of the chassis, simplifying your spares inventory and making replacement or maintenance straightforward during track days or practice sessions.
• Enhanced Torsional Stiffness — By adding torsional stiffness to the rear suspension arms, these inserts provide more predictable grip on high-traction tracks, allowing drivers to maintain consistent cornering speeds and execute more precise steering inputs throughout a race run.
• Complete Hardware Included — Eight M2.5x6 button head cap screws (BHCS) are included in the package, providing four fasteners per insert so you have everything required for immediate installation without additional purchasing.
• Factory Team Quality — These components are part of Team Associated's Factory Team range, representing the same engineering and quality standards used by professional racing teams and top-tier competitive drivers worldwide.

Technical Performance

The RC8B4.1 platform has established itself as one of the most competitive 1/10 scale off-road racing chassis in the world, and these Factory Team rear suspension arm inserts are engineered to maximise that competitive potential. The 2.0mm carbon fibre material has been selected for its optimal balance of rigidity and weight, ensuring you gain the benefits of increased torsional stiffness without the penalty of unnecessary chassis mass. The precision CNC routing creates perfectly profiled inserts that integrate seamlessly with the existing rear arm geometry, maintaining the designed suspension characteristics whilst providing enhanced stiffness where it matters most. These upgrades are particularly effective on high-grip surfaces such as indoor carpet tracks and rubber-surfaced outdoor layouts where the additional torsional control translates into measurably faster lap times and more predictable handling characteristics throughout corner sequences. The engineering approach is conservative and proven, making these inserts a trusted upgrade option across the competitive RC racing community. Installation requires basic mechanical skills and common tools, making this an accessible upgrade even for drivers who are relatively new to suspension tuning.

What's in the Box

• 2 x 2.0mm carbon fibre rear suspension arm inserts (symmetrical design, custom profiled for RC8B4.1)
• 8 x M2.5x6 button head cap screws (BHCS fasteners for secure mounting, four per insert)

Frequently Asked Questions

• Are these carbon fibre inserts compatible with both RC8B4.1 and RC8B4.1e models? — Yes, these inserts are designed to fit both the RC8B4.1 and RC8B4.1e platforms. The custom CNC profile ensures perfect integration with the rear suspension arms on both models, making them a versatile upgrade option regardless of which variant you're running.
• Will these inserts improve my lap times and handling? — The additional torsional stiffness provided by these 2.0mm carbon fibre inserts noticeably improves predictability and grip on high-traction tracks. Many competitive drivers report more consistent handling characteristics and the ability to maintain higher cornering speeds, which typically translates into measurable lap time improvements, particularly on carpet and rubber-surfaced layouts.
• How difficult is installation of these rear arm inserts? — Installation is straightforward and requires only basic mechanical skills and standard tools. The inserts are precision-profiled to match your RC8B4.1 rear arms, and you simply position them and secure them using the included M2.5x6 button head screws. Most drivers can complete installation in under 15 minutes without requiring specialist knowledge.
• Why would I choose these inserts over other suspension upgrades? — These Factory Team inserts are specifically engineered for the RC8B4.1 platform by the manufacturers who designed the chassis itself. This purpose-built approach ensures optimal integration and performance characteristics. They represent a proven, trusted tuning solution used by professional racing teams and are more affordable than replacing entire suspension components whilst delivering meaningful performance improvements.
• Are these suitable for both competitive racing and casual bashing? — Whilst these inserts will benefit any driver using an RC8B4.1, they are optimally designed for competitive racing on high-grip tracks. Casual bashers will notice improved handling precision, though the benefits are most pronounced in competition environments where track grip levels are higher and precise control becomes critical.
• What tools do I need to install these inserts? — You'll need a hex key (Allen key) to fit the M2.5 button head screws. Standard hand tools are sufficient; no specialist equipment is required. Basic mechanical competence is advantageous but not essential, as the installation process is relatively simple.

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 RC8B4.1 FT REAR SUSPENSION ARM INSERTS CF AS81668 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.