f you love the long shock solo seat look on a BMW Boxer? Starter here....
 
YSS makes a very high quality shock
16mm shaft compared to the cheap $80.00 eBay Chinese  shocks at 12mm.
380mm Long Black Special Edition Shock
Black body & black spring
Rebound damping adjust
Fine Thread Pre-Load Adjustment allowing you to set sag to the millimeter.
Multiple spring rates in stock, shocks are setup for your weight and loads.
50 Micron steel cylinder for strength and long service life between rebuilds.
Long life Teflon reinforced seal head.
36 mm Sintered Piston and 16 mm Heat Treated Hard Chrome Low Friction Shaft.
Fully rebuildable by us or any quality suspension shop.
Two year warranty
 
Given the odd shock angle these will actually give you some rear suspension compared to other brands