The Ohlins KA740 STX 46 Blackline is a rear mono shock developed for the Kawasaki Z900RS range, blending classic appearance with modern damping control. Built around the STX architecture, it uses a gas/oil separated design for consistent performance through changing road conditions. External adjusters let you fine-tune the bike’s balance for comfort, grip and stability without changing the character of the motorcycle.

Ohlins | Made to race, perfected to ride

Blackline components are designed to suit bikes where styling matters as much as function. This unit focuses on controlled damping and predictable chassis behaviour while keeping a finish that complements retro and custom builds.

Who this shock is for

  • Z900RS riders wanting improved ride quality and control on real-world roads.
  • Owners chasing more stability under acceleration and braking without losing a compliant feel.
  • Street and weekend riders who value adjustability for load, tyres and road surfaces.

Shock design & features

  • STX single-tube shock body with gas/oil separation for stable damping behaviour.
  • Mono shock layout intended to work with the standard linkage arrangement.
  • Blackline finish suited to classic and heritage styling.

Tuning controls

  • Rebound damping adjustment to control return speed after bumps and weight transfer.
  • Compression damping adjustment to manage support and impact control.
  • Spring preload adjustment to set ride height and accommodate rider/passenger and luggage.

Before you install

  • Set sag and preload first, then fine-tune rebound and compression in small steps.
  • Check clearances around the reservoir and adjusters during full suspension travel.
  • If you change tyres, load, or riding style, revisit the settings to keep the chassis balanced.

Serviceability/lifecycle

This Ohlins shock is designed to be serviced and revalved by a suspension technician. Periodic oil and seal service helps maintain damping consistency and extends component life, especially in wet or dusty use.

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 KA740
Model # S46DR1LS (B)
Barcode # KA740
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) 350.0 +10/-2
Spring Rate Standard 100.0 N/mm
Type Code S46DR1LS (B)
Stroke Metal to Metal (mm) 69.0
Product Family STX 46 Blackline
Fitted Spring 21103-34
Rec. Ohlins Oil 01309-

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