“The machine itself receives some of the same feelings. With over 27,000 on it it's getting to be something of a high-miler, and old-timer, although there are plenty of older ones running. But over the miles, and I think most cyclists will agree with this, you pick up certain feelings about an individual machine that are unique for that one individual machine and no other. A friend who owns a cycle of the same make, model and even same year brought it over for a repair, and when I test rode it afterward it was hard to believe it had come from the same factory years ago. You could see that long ago it had settled into its own kind of feel and ride and sound, completely different from mine. No worse, but different.
I suppose you could call that a personality. Each machine has its own, unique personality which probably could be defined as the intuitive sum total of everything you know and feel about it. This personality constantly changes, usually for the worse, but sometimes surprisingly for the better, and it is the personality that is the real object of motorcycle maintenance. The new ones start out as good-looking strangers, and depending on how they are treated, degenerate rapidly into bad-acting grouches or even cripples, or else turn into healthy, good-natured, long-lasting friends.”
Robert M. Pirsig
Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values