I know, there's a lot of pro's and con's about the benefits of Sealsaver's. I've been running them for over a year now on my (gasp!) KTM360EXC, and recently installed them on my 650r. THe main bugaboo bout the 650R is overheating, right? Squat down in front of your bike, TRY to see your radiator. No dice? Big ugly accordion forkguards in the way? With the sealsavers in place, you can view about 75% more radiator surface area, translates into more air flow to your radiator. Spent the last year cookin' the KTM before I installed the sealsavers, ain't gonna happen to the 650. If they happen to provide better protection for your seals, that's a plus!