noun
stirrup straps; stirrup leathers
Refers to the leather straps that suspend the stirrup from a saddle. A specialized equestrian term.
乗馬の前に、鐙革の長さを調節してください。
Before riding, please adjust the length of the stirrup leathers.
鐙 is the stirrup itself, while 鐙革 refers specifically to the leather straps that hold it.
Compound of 鐙 (あぶみ, 'stirrup') and 革 (かわ, 'leather'), with rendaku voicing of かわ to がわ.