I appreciate the Velodrome providing the rentals for free. Now having said that make sure you check the rental out well before you ride it. Have you noticed all of the crash marks on the track? Most have been made on the rentals and one of the nice Fuji's has some very jacked up handle bars and who knows what else is going on with some of them! At first I was thinking I was just going to use the rentals until I got serious but now I'm thinking I will purchase my own bike regardless out of safety. I'm sure they do their best to make sure the bikes are safe but I'm going to play it safe.