Here's the Arnott web site.

http://www.arnottairsuspension.com/p....asp?makeId=16

Looks like they sell complete systems for you bike for as little as $599.00 but, check with Drew at Dr Vtwin, they sell them and are forum sponsors & may save you a buck or 2!

 

I just changed out my OEM shocks with a lowering block over to Progressive 940's. Got the drop of 1" while no longer bottoming out riding 2-up loaded. Got a bit firmer ride but so much better the bottoming out and easy adjusting with a hand turn of the shock adjuster.

 

Been there, done that, and had the same problem. The street glide shocks just didn't have enough travel for my wife and I. Progressive makes a 940 shock that is supposed to be a good compromise. If you search on "940", I'm sure you'll get some information that might help you make a decision. Ricor also has 12" shocks that are much better than stock, but even with the better shocks, you sacrifice ride quality with the shorter shocks.