We want to bike on our own (self-tour) to several wineries, but we are a little concerned about biking safety. I saw on a previous post there is a bike path from Maipu---are there others or is this our best bet? This would seem to avoid vehicles whizzing by us. We are staying in central Mendoza but will have a car for most of our stay, so we could drive to a bike rental location. Can anyone recommend bike rental agencies? Do they all provide bike helmets?