Originally Posted by
genejockey
I generally don't, but once or twice I've had a bike try to shift out of the low gear when standing up on a climb, which would be bad.
The old DT shifters had the bail to tighten the preload. The bar ends had a screwdriver slot. I did have the DT come loose. Oh, just remembered a bike with friction shifters mounted on the stem. They had a little plastic wing nut type thing.