Kafa Yak

It's unclear whether grummles named this yak after its color or purpose.

Riding Requirements:

This mount is available to all eligible characters on your account.
Level 10
Apprentice Riding

Source:

Hemet Nesingwary XVII.
Cost: 2200

Notes:

While its look was added at the start of Mists of Pandaria, this yak will finally become available during the Pandaria: Remix Timerunning event in 10.2.7.

Introduced in:

Patch 10.2.7

Travel Mode:

Ground (+60% or +100% speed)

Speed depends on your riding skill.

Other Mounts Using the Same Model:

Black Riding Yak

Blonde Riding Yak

Grey Riding Yak

Modest Expedition Yak

More info on Wowhead:

Kafa Yak taught by Reins of the Kafa Yak