Just to clarify I changed out the Bitubo's as I wanted to try the Bonneville ride height hence going from Bitubo's to shorter stock T100 shocks. Not wanting to invest loads of money if I didn't like the new 340mm shock ride height - I tried some T100 new take offs. I loved the ride height, hated the shocks, so didn't go back to the 360mm Bitubo's.Thanks man, you're definitely the guy to ask then, I doubt anyone else has tried so many different shocks on the same machine.
Have you done any off roading with the ikon shocks? How about long distance on the highway and twisty canyon roads? How would you rate them on a scale of 1-10 for those categories? If they only bottom out on big potholes are they stiff on smaller bumps or do they just kind of glide? How much do you weigh (if you dont mind my asking)
I only ride roads - no off road stuff so can't comment on that. The Ikons have progressive springs and feel very balanced over smaller bumps but not the same as a very soft shock. I do lots of English A and B roads which can be very twisty and these shocks work just great giving a lot of confidence in bends. I would rate these shocks very highly say 9 out of 10.
Also, worth pointing out that I changed my front springs out to full length progressive springs (not the short stock length ones) just as I decided to bite the bullet and change the ride height. Not a good idea only ever make one change at a time. Basically my front end was terrible with both the T100 stock shocks and the YSS and I almost went back to the stock set-up to try and get the rear right, I couldn't go back to the Bitubo's as I had already sold them! But as soon as the Ikons went on the front end became just as good as the rear and I haven't touched it since.......
I weigh in at 12 1/2 Stone straight out of the bath which was on the high side for the lighter Ikon springs but in reality if anything I could be a fair bit heavier and still be OK using them. I had to special order the lighter spring model as it seems not many people ask for them, as I've said before I think most manufacturers recommend too firmer springs for our bikes. This may well be as @lambroving stated they haven't ever tested them out on a real bike.
I hope this helps you out, but remember it's only my experience and those variables come into play all the time. I didn't like the YSS's at all but as others have said they get good reviews, I've also used Hagons on 2 other bikes and really hate them as I find they are way over sprung - but loads of guys love them so what do I know?