[VulcanRev]

I have a two part answer, first check your location of your "rub-blocks." Mine were mounted on the front of my boards, although this allowed me a great lean angle for a cruiser, every time I scraped the boards it was the aluminum coming off the back of the board itself.
I moved my blocks to the other mounting location at the back. This significantly reduced my lean angle before I rub, but of course I'd rather sacrifice the blocks than the boards. All this was done prior to installing the 1 1/4" cobra freeway bars.
I have since rubbed on numerous occaisions and the tought always goes though the back of my mind "don't hit the bars...don't hit the bars" as my grip tightens on the ISO's and on the seat! However after almost 3 weeks of riding with the freeway bar, I am positive you would need to darn near break a board off before hitting the bar. Cobra did a ggreat job of designing the lower angle to just catch the outboard edge of the board in case of a tip over, and still have it at a suffecient angle to lean her till you scrape and still be safe.