I have 53/53 Öhlins FGRT819 forks on my 999 and bought some IMA billet 53/56 triples. I'm currently using a 1098 53mm lower triple.What forks are you trying to fit to what bike? There may be an easier solution. For example, if this is a 916 series and you have an Ohlins lower triple but want to put Showa forks, then Showa lower triples are pretty easy to find for less than $100. If you want something nice, I've got a set of black anodized billet 53/53 triples. I'd even be interested in trading for a 56mm lower triple.