Good day I'm hoping that someone can help me. I have a 1955 Vespa 150 struzzo. The speedometer does not work. Further inspection I noticed that the gear drive in the front hub only rotates when you turn the wheel backwards. Also, when you put a drill on the end of the cable, that's attached to the speedo it only works when you put the drill on reverse The speedo does not work when you put the drill on forward. Could someone please tell me what the problem is it seems like everything is backwards.