Brought it home yesterday and he's already spent 2 hours on the trainer. WEll 30 minutes at shop getting fitted which required some work to get bike small enough, shorter stem, smaller seat, remove some spacers kinda stuff. Last night he did about 20 minutes when we got home and today he spent a full hour on it after school. Kid can spin it up too, has hit as high as 180 cadance but I mean just hit it can't hold it there but can keep it around 150 for a good bit. Still have a lot to learn like basic riding skills and proper form but he's a good learner. Can't wait for spring and our first ride together. Here are a few pics of the happy Birthday Boy! Oh yeah bike is a 2008 but brand new C'Dale Six13 size 45.