This buggy reintroduces the forward-swept front end and rear-mounted shock configuration of the original car, optimized with the co-planar Ackermann steering geometry. The suspension design provides maximum front-end clearance and minimizes bump-steer while maintaining correct buggy Ackermann angles. Trailing front axle or optional inline steering blocks can be used to adjust steering response.

The B4 chassis provides a super-low center of gravity by lowering the motor, battery, wing and even the shock mounting positions, enabling much higher cornering speeds and stability during jumping and through bumpy sections of the track. The adjustable-angle rear wing mounts and even the transmission case are now integrated into the chassis/suspension structure. The symmetrical suspension arm design has all four arms being the same length, and "captured" hinge pins so that no e-clips are used.

The transmission has also been optimized into an ultra-compact package, and now uses the same 2.6:1 higher torque-capacity differential as the RC10GT. A double-sided slipper assembly (first prototyped by Team Associated in 1989) has been designed with higher torque capacity, easier assembly, and lower rotating mass than comparable double-sided slippers. This provides a finer adjustment range and more efficient slipper operation.

The B4 uses offset-front wheels and "wide-body" front tires. The rear wheels are now interchangeable with other manufacturer’s buggies, enabling pre-mounted tires for standardized "spec" class racing to easily be used. The B4 is topped off with a super low-profile body and adjustable rear wing, providing a sleek, aggressive look on the track.


Type: Electric Off-Road Buggy
Scale: 1/10
Length: 14.4 in (366mm)
Width: 9.69 in (246mm)
Wheelbase: 10.7 in (273mm)
Weight: 42.3 oz (1199g)
Chassis: Composite tub
Suspension: Independent front and rear A-arm
Drivetrain: 2WD
Kit/RTR: Kit
Shock Type: Hard anodized
Body: Unpainted

Needed to Complete

- R/C 2-channel surface frequency radio system
- Battery pack (6 cell)
- Battery charger (peak detection charger recommended)
- Electronic speed control
- R/C electric motor
- Pinion gear

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