I have an old timer hanging in my garage that I would like to bring back to life. It is a Zini that I have not ridden in maybe ten years. I need some advice on which upgrade to do as to make it proud again. Buying a new bike is not an option as the road we travelled together makes it impossible to get rid of it. Equipped with Shimano 105 group set and still in good shape. Unlike the owner !!! Any help will be welcomed.