This is really the only setup that works for Riven in Solo Que.
I think these runes are the best for maximizing Riven's damage potential. Since Riven scales HEAVILY off of your max AD this allows you to get your passive up and still remain tanky through Armor and cooldown blues and yellows.
I strongly believe this is the most efficient way to setup riven's mastery page. The points in the Offensive tree give you a lot of killing power as well as farming potential.