Öhlins STX 46 Street Shock Absorber Kawasaki Z900RS (2017–2026) – view 4
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part NumberKA 739
FitmentKawasaki Z900RS (2017–2026)
Road ApprovalABE (Germany)
Mounting PositionRear Mono
Length350 +4 -2 mm
Stroke69 mm
Spring Rate100 N/
Piston Diameter46 mm
Spring Part Number01096-34
DescriptionThe whole story▼

The Kawasaki Z900RS of 2017–2026 has its own Öhlins part number, and this is it: KA 739. Standard rear dampers are built to a price; this one is built to a specification.

Key Features

  • Delivered with a 100 N/mm spring, selected for the Z900RS
  • Gas-pressurised monotube damper with the reservoir integrated into the body
  • Spring part number 01096-34 fitted
  • Adjustable rebound damping via the knob above the lower eyelet
  • Remote hydraulic spring-preload adjuster on a flexible hose
  • Damping piston: 46 mm
  • Built for the Kawasaki Z900RS (2017–2026); fits without modification
  • 350 +4 -2 mm between mounting eyes

How It Behaves on the Road

The spring carries Öhlins number 01096-34 and can be exchanged for a different rate without replacing the damper. Rate as supplied is 100 N/mm, matched by Öhlins to this machine rather than to the platform. Piston diameter is 46 mm, which is the figure that decides how hard the oil has to be pushed. The adjustable length of 350 +4 -2 mm covers the range a suspension technician would actually use on this chassis. The adjuster range is usable end to end rather than only around the middle. Adjustment is by click rather than by feel, so a setting can be written down and returned to.

What This Means on the Z900RS

Heritage bikes are frequently ridden two-up, which exposes a soft standard damper immediately. Öhlins covers the 10-year production run of this generation with a single part number, which means the mounting and the linkage stayed unchanged across it.

The STX 46 Street in Detail

The 46 mm piston is the same size Öhlins uses in far more expensive units; what changes is the shim stack behind it. Öhlins quotes a 46 mm piston for this platform, which is the same diameter used in units costing twice as much. Where a track damper is set up to reward a rider who is already committed, the STX 46 is valved to stay composed over the surfaces a road bike actually meets — expansion joints, patched tarmac, mid-corner bumps taken at less than racing lean.

Construction and Material Quality

The unit is rebuildable: seals, shims and oil are catalogue items, not a reason to buy a new one. Öhlins machines its own critical components instead of buying them in, and the tolerances are where the money goes. Spring and damper are separate part numbers, so a rate change does not mean a new unit.

Fitment and Compatibility

The fitment stated here is the Kawasaki Z900RS in its 2017–2026 form, under Öhlins part number KA 739. 6 machines in the range take this number, the Kawasaki Z900RS among them. Öhlins lists this fitment under the model designations Z900RS , Z900RS Performance.

Road Approval

Road approval: ABE (Germany). The unit is covered by a German ABE for the Kawasaki Z900RS, so no individual inspection or entry in the vehicle documents is required. The approval document ships with the product.

Fitting and Setup Service

This is not a part to rush. Öhlins recommends installation by an authorised service centre, and we are an authorised Öhlins service centre — fitting, servicing and setup all happen here. Get in touch if you would like the work done with the order.

Specifications

  • Brand: Öhlins
  • Part Number: KA 739
  • Fitment: Kawasaki Z900RS (2017–2026)
  • Road Approval: ABE (Germany)
  • Mounting Position: Rear Mono
  • Length: 350 +4 -2 mm
  • Stroke: 69 mm
  • Spring Rate: 100 N/mm
  • Piston Diameter: 46 mm
  • Spring Part Number: 01096-34
DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
  • Kawasaki Z900RS (2017–2026)
07 · Support

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