A stirrup iron is the metal loop a rider's foot rests in. Adjust the stirrup iron.
It should be wide enough that a boot cannot jam in it, since being dragged is the danger. The stirrup iron is what made heavy cavalry possible at all.
1nounstirrup ironThe metal loop a rider's foot rests in.
“The stirrup iron was set two holes too long for her.”
stirrup iron is a part.
Practised in Horses & Riding