Kyosho - Rear Tiller Unit Set (Blizzard) Cartoons The Action Base 4 is

The Action Base 4 is a big upgrade over the Action Base 1 line with a new joint system in the arm

the spring cam rotates within the flywheel to adjust the tension on the springs

Servo Size: Low Profile

the trailer bed is spacious making it ideal for transporting miniature payloads or showcasing your favorite 1/10 scale vehicles

"Mode Switching"

Kyosho - Rear Tiller Unit Set (Blizzard) Cartoons The Action Base 4 isOption Parts for Blizzard SR FR 2. 0 Rear Tiller unit which realizes the operation by 4ch radio, like real vehicle. It is easy to assemble and handle with using dry cell AA batteries for powering the tiller. Complete set, which includes servo and micro switch also.