Whatever label applies to you, rider, biker, motorcyclist, builder, mechanic, restorer or racer, it certainly doesn't define who you are, it's really a part time label. You have other interests, sometimes related to motorcycles, other times, not even close. It would be interesting to our readers to know how far afield you go, interesting to me, too, since covering those topics in greater detail might be useful for everyone and fun, too.
The particular choice of topics here obviously reflects a lot of what I find interesting. There's more than a little coverage of engines of various sorts because any engine type, if sized right, can be used in a motorcycle and I have a hunch a lot of you find engines fascinating no matter what their application. From your basic single to the R-4360, there's a lot to choose from.
Some of you ride, that's your involvement, not fixing, repairing, modifying, restoring or anything technical, you just ride. You might ride to relax, ride for touring cross country, ride to test your skills on the track or off road, so the question of what you do when you're not riding is a lot harder to answer.
Motor vehicles in general, with any number of wheels, might be your focus, even those with wings. Maybe you're a pilot. If you're technical and can't find something interesting at Oshkosh, you're not paying attention.
When the bike is parked, you might be in your workshop tinkering with an electrical or electronic project, while some get a little lost as soon as the topic turns to volts and amps, others dive right in. Knowledge of circuits is more than a little helpful these days when working on your bike and if your interests lie there you might restore old tube radios to relax or build something on the Arduino platform.
If someone mentions a 1911, do you picture an old Harley or do you think about spending time on the range with other shooters? There's a lot of satisfaction to be had, reloading your ammo, resizing the brass, casting bullets (old wheel weights work great!), experimenting with different loads to see how they perform. That workbench can be a reloading bench, too. Caring for old pistols and keeping them in perfect order after a day at the range is another great use of bench time. There seems to be a lot of crossover between the rider and shooter groups. The boys from Magpul are an obvious example.
So what do you do? When the bike is sitting and you're busy doing something else, what are you doing? Inquiring minds want to know.