Öhlins Fork Springs 8.5 N/mm / 390 mm / Ø 26.7 mm
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number08605-85
Spring Rate8.5 N/mm
Free Length390 mm
Inner Diameter26.7 mm
PositionVorne
ConstructionStraight
Packaging UnitPair
Country of OriginSweden
DescriptionThe whole story▼

Öhlins part number 08605-85 is a pair of fork springs rated at 8.5 N/mm, 390 mm long and 26.7 mm inner diameter. Under braking a soft spring lets the fork run through its stroke and the geometry with it.

Key Features

  • Straight-wound, constant rate
  • Free length 390 mm
  • Measured spring rate 8.5 N/mm
  • Supplied as a pair
  • Inner diameter 26.7 mm
  • Öhlins part number 08605-85

Manufacture and Tolerance

Each spring is set before it is measured, so it will not settle and lose rate in service. The wire is progressively wound where the application calls for it and straight where it does not. Every Öhlins dealer can re-valve the unit, because the shim stack is a documented, serviceable assembly.

Applications

Öhlins lists this spring for Kawasaki ZXR750 (1989–1990). Öhlins lists these applications from its own fitment work; rate selection on top of that is a matter of weight and use.

Size and Rate

Dimensionally this is a 26.7 mm × 390 mm spring; within that envelope Öhlins offers a range of rates, and this one is 8.5 N/mm.

Where This Rate Belongs

Rates here suit a solo rider of typical weight on a road-going machine. This is the middle of Öhlins' range — the rate most riders of average weight end up on once sag is set properly. Ride quality on the road is decided by rate first and damping second.

What Fitting Involves

Fork oil should be replaced at the same time — it is already out of the leg. Once fitted, ride the machine before making damping changes: the new rate alters what the clicks do. Fitting is a fork-oil job: the legs come apart, the springs go in, the oil level is set to specification.

Road Approval

Road approval: a German ABE exists for the listed applications. Keep the document with the vehicle papers.

Fitting and Setup Service

Öhlins recommends that its suspension is fitted by an authorised service centre. We are one, and we do the work here: installation, servicing and a proper setup. Ask us and we will include it with the order.

Specifications

  • Brand: Öhlins
  • Part Number: 08605-85
  • Spring Rate: 8.5 N/mm
  • Free Length: 390 mm
  • Inner Diameter: 26.7 mm
  • Position: Vorne
  • Construction: Straight
  • Packaging Unit: Pair
  • Country of Origin: Sweden
FitmentWhich bikes this fits▼
  • Kawasaki ZXR750 (1989–1990)
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08 · Paddock

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