Öhlins TTX 25 Cartridge Kit (FKR 100) FKR 126hlins TTX 25 Cartridge Kit (FKR 100) FKR 126 The racing inspired FKR cartridge kit has technology derived straight from the Moto3, Moto 2 and World Superbike championships developed by our engineers in Sweden and is designed for high end racing. 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