Its the bond. The bike becomes an extension of me, or I with it. Twisting the throttle, braking-hand or foot, grabbing the clutch and shifting, laying into a curve. Every part of me interacts with every part and beat of the bike. It reacts to my thought, action, and instinct. All the while we ride into whatever elements lie above and below. We are our own master.
Einstein was right. Space and time do warp. After a days ride, miles and hours seem like a blip.