All kinds of bikes.
All kinds of uses.
One single purpose.
To help you remember when riding a bike was fun! That's what riding is supposed to be. Not painful. Not work. Definitely not something to be thought of with a deep sigh and a “well, if I HAVE to” grumble. Fun. Like when you were a kid and getting on your bike or scooter meant you were free from the risk of getting asked to do dishes or pick up after the dog. Live like a kid again, but this time, someone else is scoopin' the poop.