I just put a set of Sato TI on my bike. They look, fit, sound awesome. Here in MN there is snow, ice, and salt, so I can't tell you how the bike runs yet. I got my set through Chicago Cycle off Ebay for $645 including shipping. They were getting rid of dusty parts off there shelves that weren't moving, so I guess I got lucky. From what I've seen these are first gen.