Originally Posted by Dannihilator
+1 on they are called ladders.
My dentist was hiking and saw some mountain bikers. She was amazed that they could ride that fast without crashing on rocks, tree roots and other things.
She thought it would be hard to adjust to different style of cycling. That lead to her finding out I mountain biked in addition commuting and road riding.
She was again amazed that I owned 7 bikes for different styles of riding. That seemed very odd to me, as I know she owns at least 5 motor vehicles, a range rover, a trail blazer, a bmw sedan, a bmw sport car and a japanese crouch rocket (motorcycle).