This is a nice, clean Trek Navigator 100 which is classified as a mountain bike because it has wide tires and shock front fork but the posture to me seems like it would be a great bike for someone riding rail trails and places like that. It's a very upright posture. I'm 5'11" and the bike is a good size for me. Probably good for someone 5
6"-6'2"
Could use some oil on the chain and just a general cleaning but it rides nice. Grip shifts and water bottle holder. A cushy seat that has a couple of rips but is still totally usable.