Hi I have Renthal bars and matching bar ends with no problem of vibration, you can cut them about 1/2 inch shorter either end if you wish. Do not forget to drill holes in the bars for the lighting and switch gear. Wrap masking tape around the bars in the vicinity of the holes before drilling. Mark the peg on the inside of the switch with permanent marker or like, place swicthgear in the position you require and press, thus marking the masking tape with the position of the hole required. Do this with handlebars in the centre clamps and sit on bike to get the positon you require. Best of luck. Mike.