The Ohlins HD816 rear suspension is a twin-shock unit built for Harley-Davidson Dyna FXD models that need controlled damping and consistent behaviour on real roads. Based on Ohlins STX architecture, it focuses on stability, grip and predictable chassis response under braking, acceleration and changing surfaces. It is designed to be tunable without making the system complex to live with.

Ohlins | Made to race, perfected to ride

Ohlins twin shocks are engineered around stable damping control and repeatable performance. The STX 36 platform is widely used where ride feel, support and durability matter as much as outright control.

Who this shock is for

Suited to Dyna FXD riders who want a clearer connection to the road and improved stability without sacrificing comfort. It fits riders who value adjustability for load changes, different roads and personal preference.

Shock design & features

This is an oil/gas separated design to help maintain damping consistency during longer rides and varying conditions. As a twin-shock rear setup, it’s intended to keep the rear of the bike settled and predictable through corners and during hard braking.

Tuning controls

You can adjust rebound damping and spring preload. These adjustments let you control how quickly the rear recovers after bumps and how much support it provides under acceleration, braking and with added load.

Before you install

  • Confirm fitment to Harley-Davidson Dyna FXD and check overall condition of mounting hardware and bushings before installation.
  • After installation, set sag and verify clearance at full travel, especially if ride height has been altered from stock.
  • Any damping or preload changes should be made in small steps so you can feel the difference and keep the setup balanced.

Serviceability/lifecycle

Ohlins shocks are designed to be serviced to maintain performance over time. Routine servicing helps keep damping consistent and protects internal components, particularly on bikes used regularly or in harsher conditions.

SKU HD816
Model # S36DR1L
Barcode # HD816
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 Twin
Shock Length Eye to Eye (mm) 325.0 +5/-5
Spring Rate Standard 32.0 N/mm
Type Code S36DR1L
Stroke Metal to Metal (mm) 68.0
Product Family STX 36 Twin
Fitted Spring 66422-032 21180-01
Spring Colour Black

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