I really liked this book a lot. I don't know anything about this sport nor saw a race in my life. But I wanted to read it b/c it was encouraging to hear a story about when you are down and everything speaks against you, to FIGHT and never give up. I didn't have much trouble imagining certain things though lack of my knowledge in this area, but it can be for some, I just felt so captured by the race itself. And the author really makes it alive.
There were few pages that were R-rated, and not important at all to the story, to describe the culture when the event took place and the kind of people it was associate with, (whatever). so if you care about it, just skip it (I ripped those pages out :))