For most runners of this weekend’s New York City Marathon, just finishing is a massive accomplishment. But for a select few, winning is the aim. Those runners keep a blistering average pace of 4:46 minute miles; for most, that seems conceptually quick but, in reality, it’s hard to know exactly what that speed feels like. So Asics is bringing a mobile treadmill set at that pace, complete with a harness, to the streets of New York in a mobile advertising campaign. It’s a great premise, and has generated a large amount of shareable content on YouTube. Just another example of out-of-home installations gone right.