FKR109 - OHLINS Honda CBR1000RR (12/19) Front Fork Cartridge KitFront fork cartridge kit by Ohlins for Honda CBR1000RR. The FKR Cartridge kit features a spring pressurized system, compared to the old gas pressurized system, the spring pressure offers a more simplistic and user friendly design that also accounts for easier maintenance. But there are more advantages of a spring pressurized system. There is no risk of gas leakage, it also gives a more consistent performance curve and allows for a more compact design.