The Ohlins HD641 STX 36 Twin rear suspension is built for Harley-Davidson Sportster models using a twin-shock layout. It is designed to deliver controlled damping and consistent behaviour across changing road conditions. The STX architecture uses separated oil and gas to help maintain stable damping performance during extended riding.

Ohlins | Made to race, perfected to ride

Developed from Ohlins suspension know-how, this rear shock package focuses on predictable control and clear feedback. It is intended to support confident handling without compromising the mechanical robustness expected in a custom and cruiser application.

Who this shock is for

  • Harley-Davidson Sportster riders wanting a more controlled, composed rear end
  • Owners seeking damping that remains consistent over longer rides
  • Riders who prefer a twin-shock rear setup with tunability

Shock design & features

  • STX 36 Twin rear shock arrangement for Sportster fitment
  • Separated oil/gas design to support consistent damping characteristics
  • Progressive-rate spring supplied as part of the unit

Tuning controls

  • Rebound damping adjustment
  • Compression damping adjustment
  • Spring preload adjustment

Before you install

  • Confirm correct fitment for your Sportster model and year before installation
  • Set sag and preload first, then fine-tune rebound and compression to suit load and road conditions
  • Inspect mounting hardware and bushes during installation
SKU HD641
Model # S36PL
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) 336.0 +10/-0
Spring Rate Standard 12.0 - 19.0 N/mm Progressive
Type Code S36PL
Stroke Metal to Metal (mm) 98.0
Product Family STX 36 Twin
Fitted Spring: 00480-02

More From This Category