I’m experiencing the exact same issues. Was this part subject to a recall or is it just a case of a better performing revised part that we all just have to buy, when the original GPS starts to play up? The GPS on my bike has a single brass pin on a freely rotating disc, which fits into the hole in the end of the gear position shaft. If I understand right, I need to buy a pin and a spring which fit into that hole and also buy the new version of the sensor, with six (plus neutral) position sensor contact points, that the pin makes contact with. Is there anything else which needs to be done, after fitting the new parts?