I had to raise the seat about 3-4 inches from where the LBS had it for me. I am liking my leg almost fully stretched on the down stroke. They said said my leg should never go almost straight? I got almost 15 miles on it so far. I sat on a BSO at Walmart and my ass was killing me after 20 seconds. My ass made it an hour today on the Specialized. So I guess what ever works for the seat height is ok? It is a medium frame and I am 5 11 3/4 foot with a 32 inseam. From the top of the seat to the center of the crank is 26 inches. Is that right for my size?