The other foum or fora are just plain wrong. It is not true for any current model. I can't prove that now, but since I do have my one year later maintenance CD for our G310 bikes, I am confident time will prove me right. A person needs to be very careful in believing what is read on the internet. THIS POST INCLUDED. But a year from now or so one of us will feel foolish. I am pretty sure it won't be me.