When I went last year the bike parking was free, and I dont think you had to book. There were at least two seperate parking areas for bikes. Heres a photo of one:



I booked roving grandstand tickets but they were all full, so I just walked around and kept changing my viewing position. Theres some really great places to see everything from inside the track! Heres a couple of shots I took. If you want me to tell you where I was in any of the photos, let me know: