Fournales are marvellous, except if you want to adjust them for a passenger. I've also got the Balck and alloy HD alloys.
Mine came from France with 19.5 bars in and I used them like that for 1500 miles around France and Spain and even pumped them UP because of all the luggage we had on the bike. They coped very well with a trip into a ditch in the Picos Europas mountains, where I fell off and a major 6 reversals tank-slapper on a white painted, diesel covered wet road in France, where I didn't. I had no trace of my usual back ache for the whole trip and this was not because the pain from my broken leg, from the first day crash, overpowered my back pain. I threw the bike around quite a lot of twisties with a passenger, full panniers and a really heavy GIVI top box, with a bag on top of that.
Now I pump them up to about the same, just over 17 bars and leave them like that, even with a passenger. At 18 bars the rear wheel tends to skip over bumps, the bike feels heavier when flicking side to side for turns as the pressure goes up. At 16 bars I find the bike is nice and floppy into bends and feels a lot lighter side to side but the rest scrape a bit. They do respond to preload differently, dropping the pressure lowers the ride height but will give a harsher ride, increasing the pressure will bring the back end up higher, improve steering response and give a more sports bike ride with better feed back, although will tend to make the rear wheel skip over bumps at high speed.
I like the convenience of standard shocks for the adjustment otherwise, Fournales are the best thing I bought for the Rocket, apart from the Staintunes, PCV and Autotune.
picked up a pair of second hand air twins and the hp stirrup pump they had been fitted to a honda gold wing there about an inch and a half longer , had to get one mounting bush modded as it was smaller id the other three bolt straight on (similar to a rose joint} initialy they were topping out on the rebound so undeterred took em apart (you have to send em back to France every body told me ) really easy once you make the tools inside their very simple ,put em back together filled them fully extended to the brim with 10,40 engine oil then compressed em fully to get rid of exess oil this was a rough and ready guide to filling them ,fitted to bike pressured to 15 bar ,totaly transformsd the bike handling wise bike turns faster with its ass in the air and the rebound is now perfect lots better than the oe shocks ,vive le Francais first ride today once the frost melted cold but grinnin lika a demented cheshire cat lol
