Ikon Suspension USA have new shocks specifically for twin shock Rocket IIIs called 'Black Labels'. Right now, they just have the lowering version 11.65" eye to eye. Part# 7610-1612BL $675/pr. With long chrome covers over the springs, billet aluminum top mounts, adjustable Dial-a-Ride rebound damping, they look substantial and have made a big difference to the handling. They also have dual stage fork springs +15-20% stiffer than stock $129.95/pr. Makes the Rocket III handle about as good as it can. Eliminated that rear end weave you get after riding over a raised bump at speed with the stock units.