The Ohlins HD757 STX 36 Blackline shock pair is a rear twin-shock replacement for Harley-Davidson Sportster XL models. Built around Ohlins’ STX 36 architecture, it’s designed to improve control and composure while retaining the character of the bike. This set includes spring preload adjustment and a rebound damping adjuster.

Ohlins | Made to race, perfected to ride

STX 36 Blackline products combine proven Ohlins damping design with a dark finish suited to custom and classic builds. This model is supplied as a matched pair for rear fitment.

Who this shock is for

Suited to Sportster XL riders wanting more predictable rear suspension behaviour from a quality twin-shock setup. It’s a practical option for road use where consistent damping and straightforward adjustability are priorities.

Shock design & features

This is an emulsion-style shock design, where oil and gas are not separated by an external reservoir. The STX 36 layout is compact and well suited to twin-shock Harley applications, with the Blackline finish matching darker builds.

Tuning controls

  • Spring preload: to set ride height and support for load and rider weight.
  • Rebound damping: to control how quickly the shock extends after a bump and to manage chassis movement.

Before you install

  • Confirm compatibility for your exact Harley-Davidson Sportster XL model and year.
  • Set preload and rebound to a sensible baseline, then fine-tune after a short test ride.
  • If your current setup is worn or uneven side-to-side, replace as a pair (as supplied) to maintain balance.

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 HD757
Model # S36D (B)
Barcode # HD757
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) 279.0 / 10.9"
Spring Rate Standard 26.0 N/mm
Type Code S36D (B)
Stroke Metal to Metal (mm) 42.0 / 1.6"
Product Family STX 36 Blackline
Fitted Spring 66420-26
Spring Colour Black
Rec. Ohlins Oil 01309-

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