The bike is said to be able to handle grades up to 15 degrees (~ 26.8 % slope), which means that while it may be appropriate for relatively flat cities, those who live in hilly cities may find themselves either carrying the S1 instead of riding it uphill, or resigning yourself to a very slow ride. (treehugger.com)
There is one problem with hilly cities: they offer you awesome views of the city and they tend to be more beautiful. (arzotravels.com)
(And no, please don \» t say \» the hills \» because a study cited on this site last year noted that even hillier cities in Italy and elsewhere still have much higher ridership than we do, because of their superior bike infrastructure. (bikeportland.org)