The Ohlins KA145 STX 36 Twin is a rear twin-shock unit for the Kawasaki ER-5, built around a gas-pressurised damping system for consistent control. It is intended to improve rear-end stability and feel by keeping damping behaviour predictable across changing road and load conditions. This is a dedicated replacement shock absorber assembly designed for street fitment.

Ohlins | Made to race, perfected to ride

Drawing on Ohlins suspension engineering, the STX 36 Twin platform is designed to deliver clear feedback and stable chassis behaviour. It is suited to riders who want a more controlled rear suspension response than basic original equipment.

Who this shock is for

Suitable for ER-5 owners wanting improved traction and stability in everyday riding, including more demanding road use. A good match when you value consistent damping feel and more accurate rear suspension response.

Shock design & features

This is a gas-pressurised rear twin-shock design using Ohlins STX 36 Twin architecture. The gas pressure helps reduce aeration and maintain damping consistency as conditions change.

Tuning controls

The KA145 uses separate damping circuits for compression and rebound, allowing independent adjustment to refine support and control. This makes it possible to tailor the shock response to rider preference and typical road conditions.

Before you install

  • Confirm the motorcycle model and fitment is Kawasaki ER-5 with a rear twin-shock layout.
  • Inspect mounting hardware and bushings during installation and replace any worn parts as required.
  • Set damping adjustments to a known baseline before test riding, then tune gradually.

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 KA145
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) 302.0
Spring Rate Standard 16.0 - 26.0 N/mm Progressive
Stroke Metal to Metal (mm) 95.0
Product Family STX 36 Twin
Fitted Spring 00380-04

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