Bikers ride as a way to relieve stress and to "clear their minds" as described in Robert M. Pirsig's book Zen and the Art of Motorcycle Maintenance. Pirsig contrasted the sense of connection experienced by motorcyclists with the isolation of drivers who are "always in a compartment", passively observing the passing landscape. Pirsig portrayed motorcycling as being in "completely in contact with it all... in the scene." The connection to ones motorcycle is sensed further, as Pirsig explained, by the frequent need to maintain its mechanical operation. Pirsig felt that connection deepen when faced with a difficult mechanical problem that required walking away from it until the solution became clear. Similarly, motorcyclists experience pleasure at the feeling of being far more connected to their motor vehicles than in a motorcar, as being part of it rather than in it. Speed draws many people to motorcycling because the power-to-weight ratios of even low-power motorcycles rivals that of an expensive sports car. The power-to-weight ratio of many modestly priced sport bikes is well beyond any mass-production automobile and rivals that of supercars for a fraction of the price. Hunter S. Thompson's book Hell's Angels includes an ode to the joys of pushing a motorcycle to its limits, "with the throttle screwed on there is only the barest margin, and no room at all for mistakes ... that's when the strange music starts ... fear becomes exhilaration [and the] only sounds are the wind and a dull roar floating back from the mufflers" and T. E. Lawrence wrote of the "lustfulness of moving swiftly" and the "pleasure of speeding on the road". A sensation he compared to feeling "the earth moulding herself under me ... coming alive ... and heaving and tossing on each side like a sea." Provided by Wikipedia
