We go to Bristol every year and for the most part you're parking at least a half mile from the track if not farther away. Plus the farther away the more reasonable prices people charge you to park in their yards or businesses. The other tracks I've been to (Charlotte, Michigan, Indianapolis, Rockingham, and Darlington) I've never seen people using bikes as transportation, but it's actually very common at Bristol. I really think the layout of the track and not having a lot of parking right at the track is part of it.