Haven’t contacted Ohlins but Kyle is supposed to be their biggest dealer in the US so would expect them to know availability. I did contact Mike at Kyle and he says no longer available. This earlier R&T fork has a blue 24mm hex with the preload adjuster threaded thru it. It uses a 24mm blue lock nut on that part. Later ones used the lower blue hex as the adjuster. The adjuster has a 12mm hex to set the preload. I had rounded off the corners slightly when I thought I had the lock nut loose. Was still able to turn it but recently took fork apart for the valve upgrade and that process made it much worse. I can still turn it but can’t abide the appearance. The rest of the bike is damn near perfect & has all the need upgrades to get it roughly 60 lbs lighter. I’ll have to see if BLS wants to attempt making one if I can’t find a replacement.