O.S. Speed B21 Adam Drake Edition 4 .21 Off-Road Race Engine
From
$415.00
The O.S. Speed B21 Adam Drake Edition 4 is a competition-focused .21 nitro engine developed for serious 1/8-scale off-road buggy racing. Built for racers who want smooth drivability, strong usable power, and dependable race performance, this engine is designed to handle demanding off-road track conditions.
Developed with input from Adam Drake, the B21 Adam Drake Edition 4 focuses on controllable throttle response and a smooth powerband that helps drivers stay consistent through rough sections, low-grip areas, technical corners, and long straights.
For racers looking for a premium O.S. Speed off-road race engine, the B21 Adam Drake Edition 4 is a strong choice for competitive nitro buggy racing where drivability, tuning consistency, and reliable power matter.
Key features
Genuine O.S. Speed B21 Adam Drake Edition 4
.21 nitro off-road race engine
Designed for 1/8-scale buggy racing
Developed with Adam Drake
Smooth, controllable power delivery
Strong usable power for changing track conditions
Race-focused O.S. Speed performance
Ideal for competitive nitro off-road racing
Free ground shipping.
Quantity