Pirelli and Bridgestone make the 200 series rear by far. I ran the PR4 on the Ducati on a 190/55 and the mileage out of them wasn't very great unfortunately, amazing wet grip though and good grip overall for a tourer tire. It's hard to get good mileage out of tires with a R1 though and the power it puts out. I'm surprised my friend has almost 3k out of his OEM Pirelli on his 15' RSV4R granted he doesn't ride very hard but still.