We have this road here that I challenge anyone on a motorcycle to go through at more than 20 mph. The turns are decreasing, and off camber, with 30 foot drops off the ends. It's called "Gallows Hill Rd.". I can go through at a bit over 20, but I am a little nuts when it comes to motorcycles. Your hand better never touch that front brake, and wear strong boots, so you can stomp the ground to bring your bike back up!