Team Associated RC8B4.1 Team 1/8 4WD Off‑Road Nitro Buggy Kit (ASC80949)
The Team Associated RC8B4.1 Team Kit is a championship‑bred 1/8 scale 4WD nitro off‑road buggy kit designed for serious racers who demand speed, consistency, and tunability on modern outdoor tracks. Building on the RC8B4 platform, the RC8B4.1 focuses on a lower center of gravity, reduced weight, and improved handling on rough, un‑groomed surfaces. The result is a nitro buggy that feels planted at high speed, rotates predictably in corners, and stays composed when the track gets choppy.
Overview
The RC8B4.1 is engineered to deliver predictable high‑speed handling with a chassis and suspension package tuned for real‑world outdoor conditions. A stiffer, tapered chassis profile and updated side guards increase consistency through long sweepers and bumpy transitions, while revised suspension geometry supports a softer shock and spring setup without sacrificing corner support. If you’re racing on loamy dirt, dusty hardpack, or broken‑in outdoor tracks, the RC8B4.1 is built to stay fast when the surface isn’t perfect.
Chassis & Design
The heart of the RC8B4.1 is a revised RWB (Rear Weight Bias) chassis design with a tapered profile to increase stiffness and predictability. That added structure helps the buggy stay stable through high‑speed sections and allows you to run a more compliant suspension package for better bump handling. Updated side guards complement the chassis shape and help keep the feel consistent over long mains as track conditions evolve.
Suspension & Drivetrain
The RC8B4.1 suspension is updated for lower CG and improved compliance:
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Low‑CG lightweight aluminum shock towers (front and rear)
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Shorter 16mm shock bodies to reduce CG and overall weight
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3‑hole rear suspension arms designed for softer springs/shocks while keeping support in fast turns
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Wide‑base rear hubs with three fixed axle heights and 3mm carbon fiber hub towers for expanded rear geometry options
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92mm universal driveshafts with 17mm outdrives for strength and smooth power delivery
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44/13 bevel gears and a 47T spur gear aimed at consistent drivetrain efficiency and traction on outdoor surfaces
This combination gives you a buggy that can be tuned for both smooth, flowing tracks and rough, bumpy layouts without feeling nervous or overly stiff.
Nitro System Integration
As a nitro race kit, the RC8B4.1 is built to support modern competition nitro engines and exhaust systems with a clean, race‑focused layout. Fuel system components and chassis packaging are designed to keep weight centralized and service access straightforward—important when you’re tuning engines, clutches, and linkages between rounds.
Features
- 1/8 scale 4WD nitro off‑road buggy race kit
- Revised RWB tapered chassis and updated side guards for increased stiffness and predictable handling
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Low‑CG aluminum shock towers and shorter 16mm shocks
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3‑hole rear arms and updated anti‑roll bar geometry for smooth or bumpy tracks
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Wide‑base rear hubs with multiple axle height options and carbon hub towers
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92mm universals, 44/13 bevel gears, and 47T spur gear for efficient, smooth power delivery
- Designed for outdoor tracks and changing grip conditions
- Serious tuning potential for club racing through national‑level competition
Specifications
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Scale: 1/8
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Drive Type: 4WD
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Power Type: Nitro
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Chassis: RWB tapered race chassis
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Suspension: Independent racing suspension with low‑CG shock package
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Drivetrain: Efficient 4WD race drivetrain with updated gearing
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Vehicle Type: Off‑Road Nitro Racing Buggy
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Assembly Required: Yes (Team Kit)
Includes
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Team Associated RC8B4.1 nitro buggy kit components (chassis, drivetrain, suspension, hardware)
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Polycarbonate buggy body (clear/unpainted) and wing components
- Fuel tank and nitro‑specific chassis components as required for assembly
- Instruction manual
Needed To Complete
- .21 class rear‑exhaust nitro engine
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Exhaust system (pipe + header/manifold + couplers/springs as required)
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2–3 channel radio system (2.4GHz recommended) + receiver
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(2) standard‑size servos (steering + throttle/brake)
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Receiver battery pack (flat pack style) + switch (if needed)
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Starter box + starter box battery
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Glow igniter + spare glow plugs
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Fuel bottle and after‑run oil (recommended)
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Nitro fuel (commonly 20–30% depending on engine and local rules)
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1/8 buggy wheels and tires + CA tire glue
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Polycarbonate paint (for body) and basic build tools
