I wish to add the following informations :
Few months ago, I 've sent to Ohlins France my forks referenced : FG.9030.
The told me this forks was used on Ducati 888 Racing in 91 and 92, according to their own professional documentation. The internal spring size and oil regulators are different.
It looks like quite similar to SP.4 model except one external detail : Along the "yellow tubes", the alloy rings are smooth ...
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