Does anybody make a treadmill that is capable of going steeper than the standard “15”, which seems to be all you can find in commercial gyms? I prefer to do my conditioning outdoors but sometimes you just don’t want to be in the sun, know what I mean? My neighborhood has hills much steeper than the treadmill’s level “15” so, when confined indoors, I find using said treadmill kind of frustrating. The possibility of propping up the front end of a standard treadmill to achieve a steeper incline seems inadvisable as it’s just too dangerous, for the user and the treadmill.
Does anybody know what these numbers that designate a particular incline mean, anyway? Is it a percent grade or just an arbitrary means of seperating different levels of incline or what?