This is a Harley Davidson thing. It was never a stock item. You can purchase a kit that can be installed, it's a suicide clutch and jockey shifter. Not a suicide shifter. The jockey shifter is mounted to the transmission and does away with the tank mounted shifter. I once owned a Harley with a suicide clutch but I retained the tank mount shift. The suicide clutch---you remove the stock heel and toe rocker clutch and replace it with a lever that is spring loaded, it works like a car clutch, when you release the clutch it stays engaged till you push down and hold the clutch lever. Thus the suicide thing. If you lose your balance or whatever and are forced to put your left foot to ground you have no control over the clutch. The rocker clutch would stay disengaged till you pused it to engage with your heel. I always went to neutral when I stopped to eliminate this hazard.