Hi Kelly,
Both the Halfbike 2 and Halfbike 3 are best suited to flat ground. However they can manage going up hills as well, especially if the rider is fit. We can tell from experience that both the three-speed and four-speed models are fine for inclines up to 7-8%
Our ambassadors are Halfbikers first, meaning that they already own a Halfbike and have mastered it before becoming an ambassador. This allows the to do test-rides and spread the word locally.