I have 20 year old Koni's on my GS850, which are in need of rebuilding. They don't seem to dampen anymore and they have an oil leak. I called Koni, but they won't service m/c shocks anymore. I searched the net and found out about Ikon shocks. Proven Suspension in Australia bought the rights and design from Koni to reproduce their shocks. www.proven.com.au
I talked with Proven and it turns out that all parts of Ikon shocks are interchangeable with post 1990 Koni shocks, and seals/orings are interchangeable with all Koni's. They have an Importer in California who has parts, shocks and the ability to rebuild the shocks. www.eurotech.com
I will take my shocks apart this weekend, replace the oil and the seals.
However, if any internal parts are broken in my shocks it wont be feasable to fix them as Koni changed the design in 1990 to make them more reliable. If that is the case, I will order a new pair of Ikon shocks. I would highly recommend Proven to everyone as their customer service is second to none.
I will keep you all informed as to the progress of my findings.
Klaus
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