Just thought I would post this info. cause when I was thinking about buying I couldn't really find the answer. I've been running the 280mm floating (non-wave) rotor for about 6 weeks. After a break in period of a week or so, the front brake on my '03 450 is now a one finger (not that finger, lol) application. I really wish I would have done this sooner. I bought the EBC because it was $100 cheaper than a Braking one, no other reason. For me it is a very good mod that is a definate help in MX especially late in the moto.