Hi there. I have a few questions about motorcycles that hopefully you guys could answer for me: 1: How many modifications would it take to make a Moto GP bike street-legal? Cars and their racing variants are vastly different, but there's less parts and safety features on motorcycles, so I imagine they aren't too different. 2: Since when have racing bikes required these large spoilers/canards/aerodynamic parts? 3: Why do some motorcycles only have one headlight on the side working? In the past while out driving, I noticed a few high-performance bikes had two headlights, but only one side will be on.