Whenever I am in Slovakia I am riding this road. I did this in 2015 multiple time from both directions and now in March 2016 again (with a Honda CB1100 EX). The pavement is mostly good and it makes a lot of fun. I had the street for me alone today.... :-)
I have ridden this route now numerous times (ZX10R) and it is a peach. Fairly quiet, little to no Police presence. Road itself is very good to good condition and is great on a sports bike. Well worth doing in both directions. I would start at Lozorno though and turn right towards Pernek then travel all the way down to Pezinok.
Gute Route fur Anfenger und auch Erfarene