To add my experience with air shocks, I had the arnnot system with the compressor mounted to the fender strut on my 2011, purchase price was the deciding factor at that time compared to the legends and it worked well for what I needed (lowering at stops and for parking/backing up) short person syndrone, the ride was good for four years. I did purchase and install the legend chrome handlebar switch (looked alot better then the arnnots). Then i purchased a 2015 RG and decided that it is time for a change and purchased and installed the legend Areo system for supposily a better system/ride, well I can say that the legend shocks did give me a better ride when dialed in along with the added rebound adjustments that they offer, the compressor mounts under the bike in the open space infront of the oil drain plug-more about that later. Well in my opinion the legends rode alot better then the arnnots (tested over a 7000 mi trip in the fall of 2015), but the legend compressor is very slow to air up and the compressor location under the bike was a pain in the butt, the compressor needed to be un bolted and droped and swung out of the way from the oil catch pan when changing the oil then reattached when done. Well then I get a 2016 RG and transfer the legend system on to it and ride for a few months then finally come to realization that I will upgrade the slow air up system and eliminate the compressor mount under the bike. I did a little research and purchased a new compressor (larger volume) with mounting bracket, air tank , dump and fill valves and hoses. I installed the new compressor to the right fender strut, air tank to the left strut, made a mounting bracket for the control valves and mounted them in the space in front of the ABS control valve behind the right side cover, reutilized the legend handlebar switch and removed the lenged compressor and valves. Now again my opinion I fell that with the air tank and larger compressor I have the best of both worlds, great ride with the legend shocks and instant air up at stops etc.