I've been running 1 1/4 inch bars since 2007, first set were a set of 1 1/4" Chubby T Bars, second set is a set of 1 1/4" Double Z Bars, both have had no problems with reservours or anything else, as they make the bars to fit standard fitment harley, so obviously our parts slide upto the same spot & have the same clearance, tapered ends just give you more room not less
