Team Associated RC8B4.1 Team Kit 1/8 Scale 4WD Nitro Off-Road Buggy

Overview

The Team Associated RC8B4.1 Team Kit continues the legacy of the 2022 IFMAR World Champion-winning RC8B4 with comprehensive updates for improved handling on un-groomed outdoor tracks. Team Associated engineers focused on lowering the center of gravity, reducing weight, and enhancing performance through a new RWB (Rear Weight Bias) chassis design with a stiffer tapered profile for predictable high-speed handling while allowing a softer overall shock package.

The suspension has been completely overhauled with new low-CG aluminum shock towers and shorter 16mm shocks, along with new 3-hole rear suspension arms that allow softer shock and spring combinations while maintaining support through fast turns. The new wide-base rear hubs with 3mm carbon fiber hub towers provide extensive geometry options, while 92mm universal joints, 44/13 bevel gears, and a 47T spur gear deliver maximum grip and smooth power delivery on challenging outdoor surfaces.

Key Features

• NEW RWB chassis and side guards with tapered design
• NEW low-CG lightweight aluminum front and rear shock towers
• NEW shorter 16mm front and rear shock bodies
• NEW 6-hole 1.4mm front and 1.5mm taper rear machined shock pistons
• NEW 3-hole rear suspension arms with updated anti-roll bar geometry
• NEW wide-base rear hub design with 3mm carbon fiber hub towers
• NEW blue aluminum front upper arm mount
• NEW molded RC8B4.1 front bumper
• NEW 47T machined spur gear
• NEW +1 aluminum steering block arms
• 44/13 ring and pinion bevel gear set
• 92mm universal driveshafts with 17mm outdrives
• Updated soft blend suspension arms
• 4-shoe aluminum clutch system
• RC8B4 Mu body with RWB trim lines

Performance Benefits

• 2022 IFMAR World Champion platform heritage
• RWB chassis provides predictable high-speed handling
• Tapered chassis increases stiffness
• Lower CG improves corner speed and stability
• Shorter shocks reduce weight and lower CG
• 3-hole arms balance softness with support
• Wide-base hubs offer multiple geometry options
• +1 steering arms sharpen steering on low grip

Nitro-Specific Features

• Optimized for .21 class rear exhaust engines
• Updated fuel tank with flexible rubber lid puller
• Carbon fiber radio tray brace
• Battery and receiver box with transponder mount
• Exhaust hanger mount and spring
• 4-shoe aluminum clutch with 13T clutch bell

Usage Notes

The RC8B4.1 Team Kit is designed for competitive 1/8 scale nitro buggy racing on outdoor off-road tracks. This kit requires assembly, engine, and electronics selection. Best suited for intermediate-to-advanced racers at club through national levels.

Technical Specs

• Scale: 1/8
• Drivetrain: 4WD
• Length: 486mm (19.13 in)
• Width: 304.5mm (11.99 in)
• Wheelbase: 323mm (12.72 in)
• Power Source: Nitro
• Engine: .21 Class Rear Exhaust
• Surface: Off-Road
• Format: Team Kit (Unassembled)
• Brand: Team Associated

What's Included

• RC8B4.1 Team Kit (unassembled)
• RWB tapered chassis with side guards
• Low-CG aluminum shock towers
• 16mm shocks with springs and pistons
• 3-hole rear suspension arms
• Wide-base rear hubs with CF towers
• 92mm universal driveshafts
• 44/13 bevel gear sets
• 47T spur gear
• 4-shoe aluminum clutch with 13T bell
• Fuel tank
• Mu polycarbonate body
• Assembly hardware and manual

Needed to Complete

• .21 class rear exhaust nitro engine
• Exhaust system (muffler and header)
• 2-3 channel radio system
• Steering and throttle servos
• 4.8-7.4V receiver battery
• Model car fuel (20-30% nitro)
• Fuel bottle, glow igniter, starter box
• 1/8 buggy wheels and tires
• Polycarbonate body paint
• Silicone shock and diff fluids
• CA glue and thread locker

Summary

The Team Associated RC8B4.1 Team Kit builds on 2022 IFMAR World Championship success with RWB chassis design, low-CG shock towers, and updated suspension geometry. Engineered for nitro racing on challenging outdoor tracks, this 1/8 scale buggy delivers championship-caliber performance for serious competitors.