[header] How to measure for stirrup length [title] Secure your horse or pony. [step] Tie the pony or horse to a post, rail, or crossties before beginning your stirrup adjustments. Never leave your horse or pony untied while moving the stirrups up or down. 
[substeps] Alternatively, can have someone else hold the horse in place while you adjust the stirrups. [title] Check that the saddle is on correctly.