Reddit reviews Sportbike Performance Handbook (Motorbooks Workshop)

I highly, highly recommend the book "Sportsbike Performance Handbook" (http://www.amazon.com/gp/product/B0058M79U4) - just thinking about it makes me giddy. It's got some of the best explanations and diagrams covering how everything in a motorcycle works, and it's what really made me understand how 4-stroke engines operate as well. The author's writing style is also top notch, he's got a bit of sarcastic humor that slips in there every know and again. Don't be put off by the title if you're not in to sports bikes, there's really only a little bit that's specific to high performance sportsbike stuff at the end, and even then it's really interesting to learn about.

Happy learning!