Product overview
The STEAM AK4062C is a third-generation breakaway servo arm for AK400/420 helicopters, designed for use with 21T micro servos. Each arm is injection-moulded from high-strength reinforced plastic. Its breakaway design helps protect metal rotor-head components and servo gears during an impact, making it a protective upgrade for the helicopter’s servo linkage. The AK4062C comes in orange and is supplied as a set of four AK400/420 breakaway servo arms with the same 21T configuration.



