Ohlins NIX 30 Street — 2018-2022 Harley-Davidson Softail Fat

Ohlins NIX 30 Street fork cartridge kit for 2018-2022 Harley-Davidson Softail Fat, engineered with the brand's patented NIX damping design that separates compression and rebound control into left and right legs. Delivers stable, progressive damping with adjustable spring preload to dial in ride comfort and handling on street and sport-touring applications.

Features

• Ohlins NIX design: compression damping in left leg, rebound in right leg
• Adjustable spring preload at fork top
• 30mm piston diameter
• Drop-in cartridge upgrade for stock forks

Specifications

• Brand: Ohlins
• Manufacturer Part #: FKS 508
• Piston Diameter: 30mm
• Weight: 10.2 lb
• Category: Suspension / Fork Cartridge Kits

Fitment

Fits 2018-2022 Harley-Davidson Softail Fat models. Springs, oil, and installation tools are sold separately.

Frequently Asked Questions

Will this fit my 2017 or earlier Softail Fat?

No — this cartridge kit is specific to 2018-2022 Softail Fat. Earlier models require a different cartridge part number.

What do I need to purchase separately?

Springs, fork oil, and installation tools are not included. Ohlins supplies a service kit separately to complete the installation.

Can I adjust damping after installation?

Spring preload is adjustable at the top of each fork leg. Compression and rebound damping are set during cartridge assembly and require disassembly to change.

Is professional installation required?

Fork cartridge installation requires removing the fork tubes and some mechanical skill. Many riders have this done by a suspension shop or experienced mechanic.