Hey ! I’m 183cm and have very long legs. M was better than L for me. You’re likely borderline between S and M. Do you have a dealer where you live to try it?
from a single to double? not sure. It's my first bike with a single and I actually really love it. Simpler maintenance, less shifting, and with the huge granny gear in the back, I still haven't found a hill I can't get up. Check out my long form video on the steepest climb I did in Austria. Did it on my Giant AnyRoad 2, but going back this summer to do it on the Martin DSX1. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-0utEu3nOsfY.html
