Taking a look at the rear suspension today. I am pretty sure (but not 100%) that these units were original. I haven't seen another GS1100 with them though. Dad may have had them fitted at the time of purchase. Don't know if they work or not. Might just be easier to switch them out for a new pair of conventional shocks but I would like to try and keep her to the original purchase specification as I can.
They are air or gas filled shock with an air valve under this cap.
They have a Suzuki sticker on them.
And an adjustment control dial at the top.
Under the rubber cover there is no sign of any springs just a massive piston / stanchion constructed rather like an upside down fork leg.
The stanchions look to be in good condition with no pitting or rusting.
