Originally Posted by GeezyRider

You could also use a friction thumb shifter that costs less than $10.00 and would take up less real estate on the handlebar.

Originally Posted by freeranger

You could try a handlebar extender, to free up some room on the bar: https://www.amazon.com/koeall-Handle...%2C205&sr=8-10 Still have to move your hand to it for the horn button, but would free up room on the bar, so it wouldn't feel crowded.