I'm running a 07 750 14 in the front 48 rear. Working great. I had a 15 front and rpm was a little low thru turns 5 & 6. 14 was the answer for me.
Thnaks guys, bike was really low on rpms at many corners with the next lower gear being way too low. I believe I have stock gearing on there, 17f and 43r. I'll try 15f and 47r next time out.