I am looking at getting a Zum 4.0 and was wondering if anyone has any experience with them. I will be using it mainly on roads both concrete and brick with the occasional bike trail. I will be riding with my family so I don't need something that goes like the wind but I also don't like the ride setup on most of the hybrids I have tried. If anyone could help me out that would be cool, thanks!! By the way the shop wants to put a slightly wider tire on it as it comes with a pretty skinny tire, they said it would be better for the type of riding that I am doing, thanks again