Öhlins TTX 25 Cartridge Kit (FKR 100) FKR 121

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 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. With the Öhlins TTX technology, a new designed piston and an 8mm piston shaft we reduce the pressure build-up and create a faster damping response. That gives a “linear” style of damping characteristics which create more tuning options and also increases grip and bump absorption properties while improving chassis stability.

Purchased Parts Package

• Öhlins TTX25 Cartridge Kit
• Fork springs 9,5 N/mm
• Fork springs 10,0 N/mm
• Fork springs 10,5 N/mm

Spring rate selection is based on rider weight. You will find recommendations for this in the mounting instructions (see downloads).

Various special tools and fork oil are required for the correct installation of the cartridge kit (see mounting instructions). These are not included in the scope of delivery and can also be ordered from the Öhlins online shop.

Part number

FKR 121

Type Code

TTX25 Cartridge Kit FKR

Technical data

Fits for vehicles

• Aprilia RSV4 1100 Factory (2019) *Fits only RSV4 1100 Factory 2019 with Öhlins fork FL 960.

• Aprilia RSV4 1100 Factory (2020 – 2022) *Fits only RSV4 1100 Factory with Öhlins fork FL 963.

• Aprilia RSV4 RF (2017 – 2018) *Fits only RSV4 RF '17 + '18 with Öhlins fork FL 930.