I'm leaning with Chopper on that one...the Nightster is already a lowered "C" model in black livery, can't imagine doing much more lowering without it making the ride feel like a pogoing sawhorse while scrape-ing hard bits on mild curvy roads. If this is your daily driver, and you need to lower the bike 1" because of seat height/comfort, going to a Reach or Mustang seat, changing the handle bar/grip angle may help. Both available at your local HD dealer could be the ticket without sacrificing ride quality.:s