The Ohlins HD501 STX 46 Custom & Heritage rear shock is built to improve control and ride quality on Harley-Davidson Softail models while keeping a clean custom look. It’s a rear mono shock designed for consistent damping behaviour across real-world road conditions. Adjustment is provided to tailor comfort, support and chassis attitude to your bike and riding style.

Ohlins | Made to race, perfected to ride

Ohlins suspension is developed with a focus on damping control, durability and repeatable performance. The STX 46 Custom & Heritage range is aimed at riders who want modern suspension function without losing the character of a heritage or custom build.

Who this shock is for

  • Softail riders wanting better stability and comfort than a stock rear mono setup.
  • Custom and heritage builds that need premium hardware with understated styling.
  • Owners who want the option to tune the rear suspension for load, road surface and pace.

Shock design & features

This is an STX 46 rear mono shock. The design uses a single body architecture (emulsion type) and is intended to provide controlled damping response for road use.

Tuning controls

  • Rebound damping adjustment to manage how quickly the rear returns after bumps and load changes.
  • Spring preload adjustment to set ride height and support for rider weight and luggage.

Before you install

  • Confirm fitment for your exact Harley-Davidson Softail model and year.
  • This product has been noted as replaced by HD 503; check which part number you are fitting before starting work.
  • After installation, set sag/preload first, then fine-tune rebound based on road feel.

Serviceability/lifecycle

Ohlins shocks are designed to be serviced to maintain damping performance over time. Regular inspection and periodic servicing will help keep the shock performing as intended.

SKU HD501
Model # S46DR1S
Barcode # HD501
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
Spring Rate Standard 105.0 N/mm
Type Code S46DR1S
Stroke Metal to Metal (mm) 43.0
Product Family STX 46 Custom & Heritage
Notes Standard damper is 12 mm longer than HD 501. Replaced by HD 503
Fitted Spring: 21102-36
Rec. Ohlins Oil 01309-

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