I was hoping to gain a better ride and the ability to lower the bike and this system did not let me down. It will lower to approx 10.5 inches or raise to about 12.75 inches and the ride is great. Feel very stable and no bottoming out. It is cool to pull into a parking spot and then drop the bike, letting the air out, much easier to back up also.
Arnott makes some very good products and their customer service is great also. I have the Bilsteins with airbags and ridng two up loaded with gear the ride is excellent but one up and empty it can be a bit stiff at times but it is very nice to let the air out and get low, sure makes backing the bike up very easy.