R9-86L-01-24YELLOW is part of the SCI SCORPION Motorcycle parts line. It is a universal yellow gear rack and pinion assembly which is designed for use on an electric scooter. The assembly includes four mounting holes, a metal gear rack and pinion, and all necessary hardware and instructions. This assembly is also compatible with other SCI SCORPION products and can be used as a replacement part for electric scooter systems.