Did SV first then 250 with nice results. Just got 300 on work stand and am thinking tool tray is great spot to mount it. I'm impressed with these regulators and hope they last. The SV got a used stator also as the Chinese one lasted 900 miles. It was free after I complained to seller that it was much smaller than OEM and not plastic dipped as well(sent pix). Their Ebay ads are sometimes iffy as the unit was said to fit many Suzukis including mine but appears to be made for a smaller model street bike of 125-300cc perhaps.