[Jeff in Kentucky]

These lower footpeg adjusters are sold for sportbikes and the standard/sportbike 250cc Ninja- you have to be going well over the speed limit in a corner to scrape the footpegs, even with them lowered an inch or so. For track days, the footpegs would need to be raised back up or put higher than stock.

For cruisers the footpegs are moved more forward for longer legs, because the footpegs are already quite low and easily scrape just a little faster than the speed limit.