Just ordered two of these, can't believe the price, http://www.oponeo.co.uk/moto-tyre-details/michelin-power-rs-180-60zr17-75-w-rear-tl-m-c#146349538
Mine were delivered yesterday, great! Compared to the Mich Supersport Evo 2's I'm using now, they look like a slightly broader / flatter profile, the Evo 2's are really pointy. Also there's about an extra 1.0mm of tread depth which I'm pleased about, might actually get 2,500 miles or more out of these!!
It's because they're a 180/60 not a 55 I'm assuming. Just been on a Michelin power days round Brands GP with the Power RS. Initial impressions are that it's a decent tyre.