I got the Barkbusters V-storm S-7 and it offers 3 choices (3 kits within the package). The one with the 8mm bolts worked like a charm, with one slight hitch. The handles are so long that the bolt that's supplied doesn't quite reach the inside. No problem, Canadian Tire(or some place where they have metric bolts) and 3 x 57cents each (one spare one in case) and they fit beautifully. I got the chrome ones (plastic that's been chromed) for $155 but you can get the black models for about $50 less). I've noticed an immediate difference in the wind hitting my hands. I've had to try different positions before locking it in (thread lock supplied with it). It's warm now but I'm sure it will come in handy as I ride into October and November where it falls down to 0 degrees. (and they give the bike a great look. A scooter with attitude).
Before you send for it take out the bolt holding your handles on buy a 6,8 and 10 mm bolts to make sure which one to use before you buy the kit. I got mine through A Vicious Cycle (Barkbuster's rep in Canada). Hope this helps out.
