Reins of the Golden Riding Crane is a Golden Lotus reputation reward, sold for 2500 from Jaluu the Generous outside Mogu'shan Palace in the Vale of Eternal Blossoms. It requires exalted reputation to purchase.
"The crane is a symbol of wisdom and nobility, their ability to carry us into the skies is nothing short of miraculous. - Jaluu the Generous"
- Patch 5.0.4 (2012-08-28): Added.