TEAM ASSOCIATED RC8B4.1e TEAM KIT 1/8 ELECTRIC BUGGY AS80950

Overview

The TEAM ASSOCIATED RC8B4.1e TEAM KIT 1/8 ELECTRIC BUGGY represents the next evolution in competitive off-road RC racing. This is the latest iteration of the proven RC8B4 platform, engineered by Team Associated to deliver lower centre of gravity, reduced weight, and dramatically improved handling on un-groomed outdoor tracks. Whether you're a seasoned RC buggy competitor looking for a race-ready platform or an enthusiast seeking a high-performance 1/8 scale electric buggy, the RC8B4.1e offers the engineering excellence that Team Associated is recognised for across the UK RC hobby community. This is a complete kit that requires assembly, but it comes packed with the latest suspension technology and chassis innovations that set it apart from earlier models.

The heart of this RC buggy is the revolutionary RWB/FWB (Rear Weight Bias/Forward Weight Bias) adjustable weight bias chassis design, which allows drivers to completely reconfigure their setup to suit different track conditions and racing styles. This innovative system is a game-changer for those serious about performance tuning, as it enables you to shift between motor-rearward configuration for maximum traction or motor-forward configuration for increased steering response. The comprehensive feature set includes low-CG aluminium shock towers, shorter 16mm shocks, three-hole rear suspension arms, and wide-base rear hubs with multiple geometry options. Every component has been meticulously designed to work together as a cohesive system for optimal performance on demanding outdoor tracks.

This is a kit that demands assembly—you'll need electronics, a motor, and batteries to get it running—but the comprehensive engineering and the flexibility of the design make it an excellent choice for RC car enthusiasts in the UK who want a top-tier competition-grade 1/8 scale electric buggy. The included documentation and parts are designed to work seamlessly with recommended electronics from trusted manufacturers like Reedy, ensuring that when you complete your build, you'll have a machine that's ready to perform at the highest levels.

Key Features

• RWB/FWB Adjustable Weight Bias Chassis Design — This is the signature innovation of the RC8B4.1e, allowing you to position the motor either rearward for increased traction in loose conditions or forward to enhance steering response on grippy tracks. This single feature gives you the flexibility to completely reconfigure your buggy's handling characteristics without swapping major components.
• Low CG Aluminium Shock Towers — The front and rear shock towers have been redesigned in lightweight aluminium to lower the overall centre of gravity, which directly translates to improved cornering stability, faster lap times, and more predictable handling through technical sections of the track.
• Shorter 16mm Shock Bodies — By reducing shock length to 16mm for both front and rear, Team Associated has achieved a lower centre of gravity and reduced overall vehicle weight without compromising the damping performance needed for high-speed support and smooth bump absorption.
• Precision Machined Shock Pistons with Emulsion Seals — The included 6-hole 1.4mm front and 1.5mm taper rear machined shock pistons with emulsion cap seals provide consistent damping performance and are designed to handle the demands of competitive racing environments.
• Three-Hole Rear Suspension Arms with Updated Anti-Roll Bar Geometry — These new arms allow you to run softer shock and spring rates whilst still maintaining the support needed for high-speed cornering, giving you the best of both worlds for both smooth and bumpy track conditions.
• Blue Aluminium Front Upper Arm Mount — This reinforced component adds durability and allows the suspension to handle the stresses of competitive racing without flexing or bending under extreme loads.
• Optimised RC8B4.1 Front Bumper — The newly moulded front bumper features an optimised profile specifically designed for bumpy transitions, protecting the chassis and front end whilst maintaining the aerodynamic balance of the vehicle.
• 92mm Universal Driveshafts with 17mm Outdrives — These heavy-duty driveshafts provide increased drivetrain efficiency and are designed to handle the sustained power delivery of brushless motors without phasing or excessive vibration.
• 13-44 Ring and Pinion Bevel Gear Set — This gear combination is paired with a 46T moulded spur gear to deliver smooth power delivery and maximum grip on un-groomed outdoor tracks, providing the acceleration and top-end speed needed for competitive racing.
• Updated Soft Blend Suspension Arms — The front and lower suspension arms are now manufactured in soft blend material to maximise durability in cold weather conditions, which is particularly important for UK racers dealing with variable winter conditions.
• New +1 Aluminium Steering Block Arms — These upgrade components provide sharper steering response on low-grip surfaces, allowing for more precise control and faster direction changes through technical corners.
• Two Battery Trays with Adjustable Stops — The kit includes two battery trays, each fitted with 25mm hook-and-loop straps and adjustable stops, allowing you to position your shorty-style LiPo batteries precisely for optimal weight distribution and centre of gravity.
• ESC Tray with Protective Shield — The dedicated ESC mounting tray features a protective shield and is positioned to accommodate either 2x2S or 1x4S battery layouts, enabling you to choose the power configuration that suits your racing style.
• Pivot Ball Front Suspension Geometry — This innovative suspension design improves steering balance and provides predictable, responsive handling in all track conditions, whether you're racing on loose dirt or more technical terrain.
• 8° Steering Blocks with Wider Upper Arm Pivot — The increased pivot diameter provides enhanced stability and consistent steering response throughout the entire steering throw, reducing bind and improving overall steering feel.
• Hard Material RC8B4 Gearboxes — Both front and rear gearboxes utilise the latest hard material formula, with the front gearbox featuring a 3.5° inclined pinion gear angle to straighten the centre driveshaft for reduced phasing and vibration. Large bearing sizes of 6x13x5mm flanged bearings ensure extended component life and reliability.
• Centralised RC8B4e Drivetrain and Chassis Configuration — The entire drivetrain is optimised specifically for shorty-style batteries, which provides better weight distribution and lower centre of gravity compared to longer battery formats.
• Receiver Box with Integrated Servo Mounts — The specially designed receiver box features built-in servo mounts, integrated cable routing, and increased internal volume to accommodate various receiver types including modern antenna-less receivers.
• Wire Routing Clips for Clean Wiring — These clips ensure that your motor, battery, and sensor wiring stays organised and protected during racing, preventing damage from abrasion and reducing electromagnetic interference.
• Two-Piece Clamping Motor Mount — This design supports both forward and rearward motor positions, enabling the FWB and RWB configurations without requiring any modifications or replacement parts.
• Rear Chassis Brace with Flex Options — The rear brace is mounted centrally to the gearbox with two screw locations through the chassis, allowing you to tune the amount of chassis flex to match different track surfaces and driving styles.
• Carbon Fibre Front Top Plate — This lightweight component centralises the front chassis brace for balanced flex in all directions, improving front-end response and reducing vibration during acceleration and braking.
• Short-Length Front Chassis Brace — This design provides ideal front-end flex characteristics that complement the rest of the chassis design for balanced overall handling.
• Recessed Reversible Front Body Post — The recessed design keeps the body lower for improved aerodynamics, whilst the reversible mounting allows you to adjust body height if needed for different track conditions.
• Locking Spring Cups and Shock Rod Ends — These components feature integral locking screws to keep the cups in place during crashes, preventing disassembly and reducing pit stop time.
• Steel Shock Standoffs — These heavy-duty standoffs provide a solid mounting point for the shocks without flex or movement.
• Large-Diameter Low-Profile Fasteners — Throughout the chassis, Team Associated has replaced traditional screws and washers with these larger fasteners, which provide superior holding power and improved reliability under high stress.
• 96.5mm Rear and 104mm Front Centre Dogbones — These components feature 3x14mm pins and are engineered for increased drivetrain efficiency and reliability under sustained power delivery.
• Two-Piece Rear Body Post with Rubber Grommet — The rubber grommet allows controlled flex that extends the life of the body by absorbing impact energy during crashes.
• Improved Rod Ends with Better Thread Engagement — The new design features slotted areas for easy turnbuckle wrench access and enhanced thread engagement for reliable fastening.
• Standard "+0" mm Wheel Hexes — The kit comes with standard wheel hexes, allowing you to use a wide variety of aftermarket wheels and tyres.
• 2.2mm Front and 2.5mm Rear Anti-Roll Bars — These standard anti-roll bar sizes are precisely tuned for the RC8B4.1e chassis to provide balanced cornering performance and predictable handling characteristics.
• RC8B4 Gamma Body with Window Mask — The included body is the latest Gamma design and comes with a window mask for easy masking before painting, plus three different gearbox nose options (traditional cone, mid-height wing, and tall-height wing) to suit your aerodynamic preferences.
• 44T Ring and 13T Pinion Gears on Front and Rear Differentials — This gear set ensures balanced power distribution to all four wheels with smooth engagement and minimal drivetrain losses.
• RC8B3.2 Split Centre Diff Mounts with Aluminium Centre Top Plate — The split mount design allows easy servicing of the centre differential, whilst the aluminium top plate adds strength and reduces weight.
• Front White (9.25 Coil) and Rear Pink (12.0 Coil) Springs with Emulsion-Style Caps — These precisely matched springs are tuned to work with the 16mm shock bodies, providing the right balance of compliance and support for competitive racing.
• RC8B3.2 Narrow C and D Arm Mounts — These compact mounts allow for optimised suspension geometry and reduced overall vehicle width where possible.
• Adjustable Rear Wing Mount with Height Shims — The rear wing mount features adjustable angle shims and two height options on the rear shock tower, allowing you to optimise downforce levels for different track speeds and conditions.
• High-Downforce Rear Wing Design — The wing features more vertical fins for increased straight-line stability, a taller rear lip height for increased downforce, increased strength to reduce bending fatigue, and dimples on the backside as a template for custom cutout holes.
• Top-Mounted Steering Rack Bellcranks — This design provides extra clearance around the gearbox assembly and creates a cleaner, more responsive steering system.
• Lightweight Aluminium Steering Rack — Designed around the updated front-end geometry, the rack is durable and efficient, minimising steering lag and providing direct feedback to the driver.
• Heavy-Duty Threaded Ball-and-Steel Screw Servo Linkage — This premium linkage design provides reliable, consistent steering performance with minimal play, even after extended use and crashes.
• Blue Aluminium Suspension Arm Mounts — The A and B arm mounts are specifically shaped to interlock with the chassis, providing superior alignment and reducing play in the suspension.

Technical Performance

The TEAM ASSOCIATED RC8B4.1e is engineered for competitive 1/8 scale off-road racing on un-groomed outdoor tracks. The chassis features a 4WD drivetrain with an internal gear ratio of 3.38:1, providing strong acceleration and dependable power delivery. The vehicle measures 486mm in length and 304.5mm in width, with a wheelbase that can be adjusted through the various geometry options provided by the wide-base rear hubs. All dimensions and weight figures will vary depending on your final configuration and choice of components. The dual-motor-position design allows you to optimise weight distribution by selecting either the rearward or forward motor mount, directly influencing your buggy's handling characteristics and performance on different surfaces. The hard material gearboxes with large 6x13x5mm flanged bearings are engineered to withstand the sustained power delivery of brushless motors, whilst the 3.5° inclined pinion angle in the front gearbox reduces drivetrain phasing and vibration for smoother, more efficient power transmission. The suspension system utilises 16mm shocks with machined 1.4mm front and 1.5mm taper rear pistons paired with emulsion-style caps for consistent damping across a wide range of conditions. The 92mm universal driveshafts with 17mm outdrives are dimensioned to minimise weight whilst maintaining structural rigidity. For electronics, the kit is designed to work with 1/8 scale sized brushless motors such as the recommended Reedy Power Sonic 866 Buggy Motors, paired with modern sensored ESCs like the Reedy Power Blackbox 850R rated at 150A. Battery compatibility is optimised for shorty-style LiPo packs, with provision for either two 2S packs (recommended for lowest centre of gravity) or a single 4S pack. The included RC8B4 Gamma body works with all standard 1/8 buggy tyres and wheels. The aluminium and carbon fibre construction throughout ensures that the buggy is as light as possible whilst maintaining the rigidity needed for high-speed racing on rough terrain. The two-piece motor mount, adjustable battery stops, and flexible chassis bracing all work together to create a highly tunable platform that can be adapted to suit specific track conditions and driving preferences.

What's in the Box

• RC8B4.1e chassis with RWB/FWB adjustable weight bias design
• Aluminium front and rear low-CG shock towers
• Two 16mm shock bodies with white (front 9.25 coil) and pink (rear 12.0 coil) springs
• Front and rear suspension arms in soft blend material
• Three-hole rear suspension arms with updated anti-roll bar geometry
• Blue aluminium front upper arm mount
• Wide-base rear hubs in three fixed axle heights with 3mm carbon hub towers
• RC8B4 Gamma body with window mask and three gearbox nose options
• Hard material front and rear gearboxes with large flanged bearings
• 13-44 ring and pinion bevel gear set
• 46T moulded spur gear
• 92mm universal driveshafts with 17mm outdrives
• Front and rear differentials with 44T ring and 13T pinion gears
• 96.5mm rear and 104mm front centre dogbones with 3x14mm pins
• Two-piece clamping motor mount supporting forward or rearward positions
• Two battery trays with adjustable stops and 25mm hook-and-loop straps each
• ESC tray with protective shield for 2x2S or 1x4S battery layouts
• Receiver box with integrated servo mounts, cable routing, and increased volume
• Wire routing clips for battery and motor wiring
• Top-mounted steering rack bellcranks
• Lightweight aluminium steering rack
• Heavy-duty threaded ball-and-steel screw servo linkage
• 8° steering blocks with wider upper suspension arm pivot
• Pivot ball front suspension geometry components
• RC8B4 rear chassis brace with multiple flex options and mounting positions
• Carbon fibre front top plate
• Short-length front chassis brace
• Recessed reversible front body post
• Two-piece rear body post with rubber grommet
• Adjustable rear wing mount with angle shims and two height options
• High-downforce rear wing with vertical fins and taller lip height
• Spring cups and shock rod ends with locking screws
• Steel shock standoffs
• Large-diameter low-profile fasteners throughout
• Improved rod ends with slotted turnbuckle wrench access
• Standard "+0" mm wheel hexes
• 2.2mm front and 2.5mm rear anti-roll bars
• RC8B3.2 split centre diff mounts with aluminium centre top plate
• RC8B3.2 narrow C and D arm mounts
• Blue aluminium A and B arm mounts interlocked with chassis
• +1 aluminium steering block arms for sharper low-grip steering
• Moulded RC8B4.1 front bumper optimised for bumpy transitions

What You Need to Complete

• 1/8 Scale Brushless Motor — The kit requires a 1/8 scale sized electric RC car motor such as the recommended Reedy Power Sonic 866 Buggy Motors. Brushless motors are preferred for their efficiency, longevity, and consistent power delivery.
• Electronic Speed Control (ESC) — You'll need a 1/8 scale sized sensored ESC such as the Reedy Power Blackbox 850R or Reedy Power Blackbox 850R with Programmer 2 to regulate power to the motor. These ESCs are rated for the power levels delivered by 1/8 buggy motors.
• Radio Control System — A 2- or 3-channel radio/transmitter and receiver is required to control the buggy. Ensure you select a system compatible with RC buggies and check that frequencies are legal for use in the UK.
• Batteries for Radio System — Standard alkaline or rechargeable AA batteries are typically used to power the transmitter and receiver. Always check your specific radio system's requirements.
• Main Drive Batteries (LiPo) — The kit is optimised for shorty-style LiPo batteries. You have two configuration options: either two 2S shorty LiPo battery packs (recommended for lowest centre of gravity) such as the Zappers SG5 7.6V 6400mAh Shorty LiPo or Zappers DR 7.6V 6100mAh Shorty LiPo, or a single 4S LiPo shorty battery pack such as the Zapper SG5 15.2V 6300mAh Shorty LiPo or Zapper SG4 15.2V 6100mAh Shorty LiPo.
• Steering Servo — A 1/8 scale steering servo is essential for controlling the buggy's direction. The Reedy RT5012A HV Digital Competition 1/8 Servo is recommended as it provides the speed and torque needed for responsive steering.
• Buggy Tyres — 1/8 scale buggy-specific tyres are required and should be selected based on your local track surface and conditions.
• Buggy Wheels — 1/8 scale buggy wheels are needed to mount your tyres. Ensure they are compatible with your chosen tyre brand.
• Cyanoacrylic (CA) Glue — Used for assembling various plastic components during the build. The recommended product is FT Locking Adhesive #1597.
• Polycarbonate-Specific Paint — The included plastic body must be painted with polycarbonate-specific spray paint or bottled paint suitable for use with an airbrush. Standard automotive paints may damage polycarbonate.
• Thread-Locking Compound — Recommended for securing fasteners throughout the assembly to prevent loosening during racing. FT Locking Adhesive #1596 is the recommended product.
• Basic Tools — You'll need needle-nose pliers, a hobby knife, and a reamer (#1499) or hole punch for making holes in the body. Additional helpful tools include body scissors (#1737 FT Body Scissors), shock pliers (#1675), FT hex wrenches (#1518, #1506), FT nut drivers (#1519), wire cutters, calipers or a precision ruler, and a turnbuckle wrench (#1114).
• Optional Fluids — Silicone shock fluid and silicone differential fluid are recommended for optimal suspension and drivetrain performance, though these are not strictly required for initial assembly.
• Ride Height Gauge — This tool is needed to set suspension geometry correctly before racing.

Frequently Asked Questions

• Is the TEAM ASSOCIATED RC8B4.1e Team Kit suitable for beginners? — This is a kit requiring full assembly by the user, so it's not ideal for absolute beginners to RC hobbies. However, it is designed for competitive racers and experienced builders who are comfortable assembling complex mechanical systems. If you're new to RC buggies, we'd recommend starting with an easier kit or seeking guidance from experienced RC enthusiasts. That said, the RC8B4.1e is an excellent choice once you have some building experience and want to progress to competition-level equipment.
• What batteries does the RC8B4.1e need? — The kit is optimised for shorty-style LiPo batteries. You can configure it with either two 2S LiPo packs (7.6V each, recommended for lowest centre of gravity) or a single 4S LiPo pack (15.2V). The recommended battery options include the Zappers SG5 7.6V 6400mAh Shorty LiPo, Zappers DR 7.6V 6100mAh Shorty LiPo for 2S configuration, or the Zapper SG5 15.2V 6300mAh Shorty LiPo or Zapper SG4 15.2V 6100mAh Shorty LiPo for 4S configuration. You'll also need separate batteries (typically AA alkaline or rechargeable) for your radio transmitter and receiver.
• What makes the RWB/FWB adjustable weight bias system so important? — This is the defining innovation of the RC8B4.1e. It allows you to completely reconfigure your buggy's handling by positioning the motor either rearward (RWB) for maximum traction and rear grip, or forward (FWB) to shift weight toward the front and increase steering response. This single feature gives you two completely different handling characteristics without requiring component swaps, making the buggy adaptable to various track conditions and driving styles. This flexibility is invaluable for competitive racing where track conditions can vary significantly.
• Can I use this kit on un-groomed outdoor tracks? — Yes, the RC8B4.1e is specifically engineered for un-groomed outdoor tracks. The suspension design with shorter shocks, three-hole rear suspension arms, and adjustable rear wing all work together to handle the challenges of loose, unprepared terrain. The wide-base rear hubs with multiple geometry options and the adjustable weight bias system allow you to fine-tune the buggy's performance for your specific local track conditions.
• How does this compare to the earlier RC8B4 or RC8B4e models? — The RC8B4.1e represents a significant evolution over earlier models. Key improvements include the new RWB/FWB adjustable weight bias chassis design (not available on earlier versions), lower centre of gravity through new aluminium shock towers and shorter 16mm shocks, new three-hole rear suspension arms with updated anti-roll bar geometry, blue aluminium front upper arm mounts for added durability, new +1 aluminium steering block arms, a newly moulded front bumper optimised for bumpy transitions, updated soft blend suspension arms for improved durability in cold weather, and 92mm universal driveshafts. These refinements make the RC8B4.1e significantly more competitive and easier to set up than earlier generations.
• What scale is the RC8B4.1e and what does that mean? — The RC8B4.1e is a 1/8 scale buggy, meaning it is one-eighth the size of a real 1:1 vehicle. 1/8 scale buggies are larger and more powerful than 1/10 scale buggies, making them capable of higher top speeds, longer jumps, and more aggressive driving on un-groomed tracks. They typically use larger motors, bigger batteries, and more substantial components.
• Is painting the body included? — No, the body comes unpainted and requires assembly. You'll need to apply polycarbonate-specific spray paint or bottled paint suitable for use with an airbrush. The body comes with a window mask to simplify masking before painting. You'll also need to cut body posts and holes using the reamer or hole punch provided in your tools.
• What tools do I need to assemble this kit? — You'll need basic hobby tools including needle-nose pliers, a hobby knife, a reamer or hole punch, wire cutters, calipers or a precision ruler, and optionally shock pliers, hex wrenches, nut drivers, and a turnbuckle wrench. We recommend having FT tools as specified, which are available separately. A ride height gauge is also needed to set suspension geometry correctly.
• Can I use standard RC8B4 parts and upgrades on the RC8B4.1e? — Many RC8B4 legacy features are compatible, and there are numerous spares and optional parts available for the RC8B4.1e. However, some components like the new shock towers, rear suspension arms, and steering blocks are specific improvements designed for the 1e version. We'd recommend consulting the parts list before purchasing upgrades to ensure compatibility with your specific configuration.
• What is the recommended internal gear ratio and how does it affect performance? — The RC8B4.1e features an internal gear ratio of 3.38:1, paired with a 44T ring and 13T pinion gear set. This combination provides strong acceleration and good top-end speed suitable for un-groomed outdoor tracks. The gear ratio affects the balance between acceleration and top speed; higher ratios provide more acceleration but lower top speed, whilst lower ratios do the opposite.
• Is this a good choice for UK RC racers? — Absolutely. The RC8B4.1e is perfect for UK racers seeking a competition-grade 1/8 scale electric buggy. The design has been refined to handle variable outdoor conditions, including the wet and muddy terrain common in UK racing environments. The updated soft blend suspension arms are specifically noted for improved durability in cold weather, making this an excellent choice for year-round British racing. If you're serious about off-road RC racing in the UK, the RC8B4.1e is a top-tier 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 RC8B4.1e TEAM KIT 1/8 ELECTRIC BUGGY AS80950 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.