Hello, I'm considering to buy an Iron Horse Sunday 2008 frame. I am 178cm (5'8 ft) tall and the frame size is S. It is a great offer but I am worried that it will be too small for me. I asked a few people and they said that there were 180-185cm tall people that rode S and it wasn't too small on them. Can someone who has experience with the frame tell me if it would be too small for me? Thank you in advance