My SV650 came with a Dunlop KR448 front (120/70R/17) and Dunlop KR451 rear (180/60R/17). Has a sticker on the rear cowling that has the hot psi as 37 front, 22 rear. The PO is very knowledgeable and said this is what he raced with but of course check with the tire guys at each track for tire pressures. Does this sound like a good starting point? He also gave me some Perilli slicks, but the rear is mounted on the stock rear rim and will not fit on the wider rim he had mounted, some conversion kit. If I measure the current mounted rear rim, the total width seems to be around 6.5 inches, about an inch wider than stock, thoughts?
At COTA Dunlop had me on an R7 rear, 20psi hot, R3 front, 38psi hot. Find your local Dunlop crew at the tracks you're running and check with them as that'll be more accurate for your situation.
If you're down here in the Southeast, I'll be at the races to help you. I also have some of those older rears at a discount https://stickboyracing.com/product/180-60-17-kr451/
Your best bet is to keep lots of notes. Data, Data, Data. Morning, and afternoon temps, tire temps, etc.. You can actually get a pretty good sheet from Ken Hill's website.
