Just to add a little more info to this disscussion. I recently acquired a CMF Six Day with with a 5A motor or so it states on the cover. The frame number is 10650167 which if I understand the frame numbers would make it an early CMF bike. It also has the Bosch ignition and the brake and clutch levers are the early type with the finger bumps. I think it is a low hour bike since the orginal fenders are still in good shape so possibly has the orginal motor in it. I will have to check the serial numbers on the motor don't know those. Walt