Bws50 Scooter Speedometer Drive Gear For Aerox Bws YQ 50cc Bws100 Zuma100 M10 4VP-F5190-10 This speedometer drive gear is designed for use with Bws50, Bws100, Aerox, YQ 50cc, Zuma100, and M10.It replaces part number 4VP-F5190-10 and is engineered to accurate speed transmission from the wheel to the speedometer.The gear fits directly onto the front hub assembly and interfaces with the speedometer or depending on model configuration.It is constructed to match specifications for and consistent performance.Installation requires basic mechanical tools and familiarity with scooter front end components.This part is intended for use in maintaining or restoring proper speedometer function during repairs or replacements.