But it sure beats "the alternative"!! I remember after passing a rider when he lost traction on a hill--when everyone got to the top of the climb, and had helmets off, he saw grey hair and asked how old I was--reply (then) was 50 y.o.-he said he hoped to still be riding at my age. That was 19 years ago, and still riding trails (admittedly not as "radical"--don't live around that area now, but wouldn't mind seeing that rider again, just to hear what he'd say now!