1. Big Twin key
Sportster owners have never worried about losing their ignition key since it’s necessary to run the bike. Big Twins, on the other hand, don’t actually need the key as long as the ignition is unlocked. If you accidentally leave the key behind, you can’t lock your bike up at your destination and anyone can get on and ride away. If your bike has an electronic key fob that you keep on the shelf next to the bike, you can start the bike and ride away, and then not be able to restart it again!