Typically yes you can...as it's only 1/4" either side difference if I recall? So the majority of it should grab okay. Not to be nosey, but what are you switching to and why?
I also just did 2" spacers on my OEM bars on my C50 which was great with my Mustang seat. With the OEM seat I had 5" risers which barely fit...in fact would have been better suited had I pulled the cables in front of the triple tree. I did 4" Phat Risers on my C90 and the bars feel great. Albeit I've considered switching over to Heritage bars or maybe installing 10" apes on there. Lots of folks do it without too much trouble (other than cable/hose lengths, etc.).