I have the 2016 Sirrus Sport Disk. I has 4800 miles on it now. I have had a slight amount of trouble with the rear shifter ever sine I got it. The LBS has never gotten it shifting exactly right. I am a big guy and have ridden in every sort of Pacific Northwest weather. I've replaced and upgraded the rear dereailleur, crank and now the wheelset. (Rear wheel broke in four places.)