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.
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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