Wondrous Item, rare
These horseshoes come in a set of four. As a Magic action, you can touch one of the horseshoes to the hoof of a horse or similar creature, whereupon the horseshoe affixes itself to the hoof. Removing a horseshoe also takes a Magic action.
While all four horseshoes are attached to the same creature, its Speed is increased by 30 feet.
So throw these onto a Find Greater Steed Griffon or Pegasus and now your either tied (Pegasus) or 10 feet slower (Griffon) than a Planetar or the Roc (both have a 120 foot flying speed, vs a 120/110 foot one with a Pegasus or Griffon), and presuming your going with the Pegasus are tied for second fastest flying creature after a Solar (150 feet).
Plus your very zippy on the ground with 90 feet per round walking speed, and this is ALL before you dash.
I dont think WotC thought about it when they removed the "walking speed" part of this in 2024 rules lol.
zooom!