Hi All, recently bought a second hand Haibike SDuro 4.0 for my son, who has a daily 16 mile commute for school/sports. We got a great deal on a low mile bike with the older Yamaha PW mid drive. I have considered for myself a lighter weight bike to use for commuting to work 3-4 day a week and have been considering the above bikes. One is Class 1 the other classes three. One had concealed battery the other note. Anyone have any thoughts... Seems BMC bikes are not very common were as the specialized bikes are much more so. Help...BTW 51 year old who was an avid cyclist in the past, but needs to get back in the saddle