Board Thread:Suggestions forum/@comment-27392489-20160818034949/@comment-26350183-20160821152201

Dwarves don't use mounts for battle. There's some mention of them using pack ponies to travel and the transportation of goods, but these are for obvious reasons horrible war mounts. They rely on their mannish allies (specifically the Northmen from the Vale of Anduin) for mounted scouts and horse archers.

Citation: The Peoples of Middle-earth, Volume XII of  The History of Middle-earth