You could already read about Marija Kozin on our blog. In spring 2009 she came to our facility to show us her Azub 5 after 17.000 km. Almost everything was original. Chain, crankset, cassette, pedals, rear tyre Maraton XR (fron Maraton was changed twice). The pulley had to be changed because the bearings were worn out, also the chain tubes were changed, but we were surprised how much they survived.
All around, we are pretty satisfied with the bike and how it survived such journey.
You can see some pictures here.