The Ohlins HD504 STX 46 Custom & Heritage rear shock is built for Harley-Davidson Softail models where classic styling needs to be matched with consistent damping control. It’s designed to improve composure over bumps and maintain stability without changing the character of the bike. External adjusters let you tailor the feel to your load, riding pace and road conditions.

Ohlins | Made to race, perfected to ride

Part of the STX 46 Custom & Heritage family, this unit combines Ohlins damping know-how with finishes intended to suit custom and heritage builds. It’s a rear mono shock application for select Softail models.

Who this shock is for

Suited to riders chasing better control and support on the road, especially when ride quality and chassis stability matter as much as appearance. It’s also a sensible choice if you regularly vary load with a passenger or luggage and want the suspension to keep up.

Shock design & features

This is a gas-pressurised monotube shock with the Ohlins STX architecture, aimed at keeping damping performance consistent through changing conditions. The design is intended to balance comfort with a more planted feel during braking, acceleration and cornering.

Tuning controls

  • Rebound damping adjustment to control how quickly the shock extends after a bump
  • Compression damping adjustment to influence support and impact absorption
  • Spring preload adjustment to set ride height and support for different loads

Before you install

Confirm fitment to your exact Softail model and check clearance around exhaust, guards and accessories. After installation, set sag with preload first, then use compression and rebound adjustments to refine comfort and control.

Serviceability/lifecycle

Ohlins shocks are designed to be serviced and reconditioned to maintain performance over time. Periodic servicing helps preserve damping consistency and seal life, particularly on bikes used regularly or in harsher conditions.

SKU HD504
Model # S46DR1LS
Barcode # HD504
Brand Ohlins
Shipping Weight 5.0000kg
Shipping Size 0.300 x 0.300 x 0.500m
Type Units
See our Shipping Information See our Frequently Asked Questions
Position (Front or Rear) Rear Mono
Shock Length Eye to Eye (mm) 318.0 +12
Spring Rate Standard 105.0 N/mm
Type Code S46DR1LS
Stroke Metal to Metal (mm) 43.0
Product Family STX 46 Custom & Heritage
Notes To Raise the bike 1/2-1" Use HD506
Fitted Spring: 21102-36
Spring Colour Black
Rec. Ohlins Oil 01309-

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