Kyosho PERFEX KS-12S is a high-speed servo designed for use in 1/18 scale nitro-powered on-road racing cars. It features a powerful 3.0 kg-cm torque and a speed of 0.09 seconds per 60 degrees at 6.0 volts. The servo is also lightweight, weighing in at only 16.6 grams, making it ideal for use in vehicles where weight is a concern.

The Kyosho PERFEX KS-12S is compatible with both analog and digital proportional R/C systems, and it comes with a variety of mounting options to suit different chassis configurations. The servo also features a fail-safe system that will hold the last commanded position in the event of a signal loss, providing peace of mind in the event of a crash or other interruption.