I installed the monotubes per the instructions with progressive rears. A huge improvement in handling and ride comfort, especially over potholes, RR tracks, manhole covers etc. I started with the rear spring presets full soft and have gradually gone to the third notch for all around town two up. When I go fully loaded on a long haul two up I will adjust the preload to the next higher setting and adjust if necessary, up again. The monotube got rid of dive and squat under hard braking, made steering way more responsive, and the rears smoothed out the road. Got rid of those air lines and fittings. Anyone want to buy the stock rear air shocks and the front forks complete? I put 70000 miles on them before the changeout.
"it aint how fast you go, but how you go fast"
2007 FLHX, Progressive 412 rears and monotube front insert, SE high flow A/C, V&H true duals w basic slip-ons ,PCV, Andrews 26,Torrington full complement cam bearings, SE tapered adj pushrods, Baisley high pressure oil relief spring, Jagg 10 row oil cooler,Amsoil,Red Line, Long Ride X Stream custom windscreen, batwings, StaBo, Pirelli Night Dragons(150 rear), lots of chrome, Hogtunes speaker pack,