Asymmetric headset with upper 1-1/8″ & lower 1-1/4″ bearings (QS3 compatible)

This is an OEM headset that would work for a frame with asymmetric head tube measuring 1-1/8″ for the upper end and 1-1/4″ for the lower end.  This headset is compatible with the Pedal Force QS3 frame.