The beauty of the mountain bike is that you can get off the roads, away from cars and people, and onto trails and jeep tracks. I’d rather dodge rattlesnakes than cars any day. Some days I strike out cross-country across open desert. I’ve got kevlar-reinforced tires, with thick tubes, and a strip of plastic betwixt tube and tire as prophylaxis against cactus spines and other impregnators. No need for slime, and no flats for going on three years. My bike is an old Trek 930, a modest mid-range hard-tail – having been called a hard-ass more than once, I suppose this is appropriate – with front-end suspension. As every Thoreauvian knows, one doesn’t have to spend a lot of money to have fun and live well.
Still, nothing in my experience beats running for the endorphin kick. ‘Endorphin’ is a contraction of ‘endogenous morphine.’ The adjective means originating from within, in this case, from within the brain. You know what morphine is. The brain of a body under athletic stress seems to produce these endorphins the existence of which, I understand, is more scientific postulation than verified fact. Endorphins manifest themselves at the level of consciousness in rather delightful sensations. When conditions are auspicious, and I am about 45-50 minutes into a run, I enter a phase wherein I apperceive myself as merely riding in my body as a pure spectator of a pure spectacle. I become a transcendental onlooker, and the world becomes George Santayana’s realm of essence. “I become a transparent eyeball: I am nothing; I see all; the currents of the Universal Being circulate through me; I am part or parcel of God.” (Ralph Waldo Emerson, “Nature.”)