Ohlins STX 46 Street — 2018-2023 Harley-Davidson Softail Fat

Ohlins STX 46 monotube shock absorber for 2018-2023 Harley-Davidson Softail Fat models, featuring a 46mm piston and internal gas reservoir for responsive suspension tuning. Adjustable rebound damping and preload let you dial in the ride for your weight and riding style.

Features

• 46mm monotube piston with internal nitrogen reservoir
• Adjustable rebound damping
• Hose-mounted hydraulic preload adjustment
• Hard anodized CNC-machined components
• Low-friction shaft and seal head design
• Includes preload adjustment tool

Specifications

• Brand: Ohlins
• Manufacturer Part #: HD 515
• Weight: 8.8 lb
• Category: Suspension / Shocks and Struts

Fitment

Fits 2018-2023 Harley-Davidson Softail Fat models.

Frequently Asked Questions

Do I need new springs with this shock?

No — the STX 46 uses the factory spring rates and mounts directly into your Softail Fat frame.

Can I adjust damping and preload myself?

Yes. Rebound damping has a simple dial adjustment. Preload adjusts via the hose-mounted hydraulic adjuster using the included tool.

What's the weight compared to stock?

The STX 46 weighs 8.8 lb. Compare with your factory shock spec — most riders find the weight negligible for the handling gain.

Will this fit a 2024+ Softail Fat?

This part is for 2018-2023 models. Check with Ohlins for current model-year compatibility if you own a 2024 or newer.

Do I need professional installation?

A shock is bolt-on, but suspension work is technical. Many riders use a shop for alignment and ride height setup after install.