I just sold one with 3500km on the shimano mid range drive train that worked perfectly still(and still does according to the new owner), what you might not realize is efficiency is everything, if you are smooth and efficient riding around and when shifting you don't wear stuff as much as when your struggling and grinding. Since I climb up super tech trails I do need to grab a gear every now and then, however these are designed to make you more efficient, and they work! This is 11 spd. Also all Shimano components are e-bike spec'd, I have over 16,000km of riding the devinci's and have not broken a chain or anything yet. Again you have to ride one to experience one, dreaming up negative's does not really work, as if they were true, you would hear about them. Happy Riding!
March 27, 2020, 8:06 a.m. - Dave Norona
I just sold one with 3500km on the shimano mid range drive train that worked perfectly still(and still does according to the new owner), what you might not realize is efficiency is everything, if you are smooth and efficient riding around and when shifting you don't wear stuff as much as when your struggling and grinding. Since I climb up super tech trails I do need to grab a gear every now and then, however these are designed to make you more efficient, and they work! This is 11 spd. Also all Shimano components are e-bike spec'd, I have over 16,000km of riding the devinci's and have not broken a chain or anything yet. Again you have to ride one to experience one, dreaming up negative's does not really work, as if they were true, you would hear about them. Happy Riding!