Other forms: handlebars
A handlebar is the bar a rider steers a cycle by. Grip the handlebar, drop handlebars, adjust the handlebar.
The shape decides the riding position entirely, so drop handlebars put a rider low and flat while flat ones sit them upright. A handlebar moustache is named from the same shape, curling out at both ends.
1nounhandlebarThe bar a rider steers a cycle by.
“She gripped the handlebars tightly as the bike bounced down the rocky hill.”
handlebar is a bar.
From handle + bar.
Etymology from Wiktionary, CC BY-SA