Originally Posted by
Triode
Uhh, yeah. From a former motorcycle rider who has never had a motorcycle simply "lose traction" in a curve, where there is no debris, sand or gravel.
I have "lost traction" on a motorcycle on the asphalt only when there was sand, gravel or similar.
so, yeah, it's a "real" question.
Gravel certainly makes things worse, but if you try to corner too fast (motorcycle or bicycle), the sideways force on the wheel(s) exceeds their ability to stick to the road and they slide. If you are skillful enough and quick enough and lucky enough, you may not crash.
Ever see a motorcycle race? those guys are crazy good and they still crash, lots.