The Ohlins HD642 STX 36 Twin shock is a rear twin-shock unit developed for Harley-Davidson Sportster applications where controlled damping and consistency matter. Built around a gas-pressurised design, it aims to keep damping stable as conditions change on the road. This setup is intended for riders who want clearer feedback and more predictable chassis behaviour from the rear end.

Ohlins | Made to race, perfected to ride

Ohlins brings its suspension development experience into a bolt-on twin-shock solution for Sportster models. The STX 36 Twin family is designed to deliver controlled damping response and reliable operation in real-world riding.

Who this shock is for

Suited to Sportster riders looking for a more composed rear end under acceleration, braking, and mid-corner loads. It’s also a fit for riders who want adjustability to tailor feel for different roads and riding styles.

Shock design & features

  • Rear twin-shock configuration for Harley-Davidson Sportster fitment
  • Gas-pressurised damping system to support consistent performance
  • Ohlins STX 36 Twin product family design

Tuning controls

This shock provides external damping adjustment for both compression and rebound, allowing you to balance support, comfort, and traction to suit your setup and riding conditions.

Before you install

  • Confirm correct fitment for your exact Sportster model and year before installation
  • Check clearance around exhaust, guards, and accessories common to custom Harley builds
  • After installation, re-check fasteners and alignment after the first rides

Öhlins Motorcycle Suspension Warranty

New Öhlins motorcycle shock absorbers, front forks and cartridge kits supplied by Teknik Motorsport are covered by the applicable Öhlins manufacturer’s warranty against defects in materials and workmanship.

Teknik Motorsport is an authorised Öhlins Service Centre and administers warranty claims in accordance with the Öhlins warranty conditions. The service intervals below form part of the maintenance requirements for Öhlins products supplied and supported by Teknik Motorsport.

This warranty is in addition to the consumer guarantees that apply under the Australian Consumer Law.

  • Registered motorcycles — non-competition road use Five years, subject to correct application, installation, setup and servicing every: 20,000 km or two years, whichever occurs first.
  • Registered motorcycles — adventure and light off-road use Five years, subject to correct application, spring rate, setup and servicing every: 10,000 km or annually, whichever occurs first.
  • Unregistered or competition motorcycles Two years for eligible Öhlins MX and Enduro products, subject to inspection every ten hours and servicing every: 30 operating hours or annually, whichever occurs first.

Compliance with the applicable service interval is a condition of the Öhlins manufacturer’s warranty. Evidence of servicing may be required when a warranty claim is assessed.

A seal leak, loss of damping performance or internal wear arising after the prescribed service interval has been exceeded will be treated as a service or maintenance issue rather than a manufacturing defect.

Warranty repairs

Öhlins suspension products are designed to be serviced and repaired. Where a warranty claim is approved, the normal remedy is repair of the customer’s original suspension unit using genuine Öhlins replacement parts.

Replacement of a complete shock absorber, fork or cartridge kit is not automatic and would normally occur only where the product has suffered a manufacturing failure that cannot reasonably be repaired. This is at Ohlins discretion. 

Öhlins spare parts and service kits

Öhlins spare parts, seals, bushes, service kits, springs, fluids and individual components are covered only against defects present when supplied.

No fixed age-based warranty applies to wear items, service parts or consumable components. Wear, deterioration, contamination, incorrect installation and damage caused by another component are not manufacturing defects.

Öhlins gives the customer a meaningful five-year warranty on products (Units), provided the suspension is maintained as suspension should be maintained. Teknik supports that warranty locally, can inspect the product properly, and can repair it with genuine parts rather than discarding it.

SKU HD642
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) 360.0 +10/-0
Spring Rate Standard 12.0 - 19.0 N/mm Progressive
Type Code S36PL
Stroke Metal to Metal (mm) 100.0
Product Family STX 36 Twin
Fitted Spring 00480-02

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