I get cramp in my upper back after about 50 miles, and I'm not sure if my bike has stock bars. Could someone with a stock bike check their bars and let me know their dimensions? My bars measure 28.5" straight across, and go back 9.5" at the ends compared to the center. Also the height of the grips is about 3" above the clamps. I would prefer more of a dropped bar like on my Ninja 250, but those Norma Hyde three piecers look weird to me.