I'm just about to pick up a new GSA and the plan is to ship it to Chile with the aim of riding through the Atacama desert then into Argentina and ride Ruta 40. Ignoring the tarmac element many of the roads will be hard packed earth/gravel/loose stones. The bike has arrived fitted with Michelin Anakees. I spoke at the dealership yesterday to a chap who fitted Metzler Karoos to his GSA. He had been doing some proper off roading with them and said they were very good. Now I'm not going to going off road - it's just that the roads will be rough. I have toured a lot in Europe but always on tarmac and on a combination of K1200S/K1300S/XR 1000 but am a newbie when it comes to the GSA and tyre choices for the type of roads I will be riding. So if anyone has any thoughts or recommendations I will be grateful to receive them.