I have had this bike for about 5 months and I am so pleased with our compatibility. So far, I have taken this bike from Santa Monica to Ventura with medium heavy rear panniers. The ride was smooth and the bike was reliable. I imagine my rear rack was carrying about 25 lbs but could support more. I feel really comfortable with the bar end shifters and can go anywhere with 27 gears! The true test will be next week when I embark on a 700 mi journey with it. I'll return with a better understanding of how this bike works.