Öhlins Fork Springs 9.0 N/mm / 440 mm / Ø 24 mm
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number08669-90
Spring Rate9.0 N/mm
Free Length440 mm
Inner Diameter24 mm
PositionVorne
ConstructionStraight
Packaging UnitPair
Country of OriginSweden
DescriptionThe whole story▼

Öhlins part number 08669-90 is a pair of fork springs rated at 9.0 N/mm, 440 mm long and 24 mm inner diameter. This is the change a suspension technician makes first, before touching a single click.

Key Features

  • Measured spring rate 9.0 N/mm
  • Öhlins part number 08669-90
  • Inner diameter 24 mm
  • Supplied as a pair
  • Free length 440 mm
  • Straight-wound, constant rate

Why the Rate Holds

Anodising is hard-coat rather than decorative, which matters on a component exposed to road salt and stone chips. Shafts are hardened and surface-treated so the seal has a consistent surface to run against. Every Öhlins dealer can re-valve the unit, because the shim stack is a documented, serviceable assembly.

Applications

Öhlins lists this spring for Kawasaki GPZ900R (1999–2000). The rate is chosen for rider weight and riding style, so treat the list as a starting point: a spring of these dimensions fits any fork that takes them.

Dimensions

Öhlins holds the free length at 440 mm and the inner diameter at 24 mm across this rate range, so moving up or down a rate changes nothing about the installation.

What This Rate Does

This is the middle of Öhlins' range — the rate most riders of average weight end up on once sag is set properly. A mid rate balances support under braking against compliance over the surface, which is why it is the usual starting point. A road machine spends most of its life in the first third of the fork's travel — that is the part the rate governs.

What Fitting Involves

Fork oil should be replaced at the same time — it is already out of the leg. Work on both legs in one session so the fork stays symmetrical. If the fork has not been serviced recently, bushes and seals are worth replacing while it is apart.

Road Approval

Road approval: a spring is a like-for-like replacement of a wear part and carries no separate type approval. Where Öhlins states an approval for a particular motorcycle, it is named under Applications.

Important Notes

  • Use the oil and air gap specified in the vehicle manual.

Fitting and Setup Service

Öhlins suspension rewards careful fitting. We recommend having the work done by an authorised Öhlins service centre — and we are one ourselves: we fit, service and set up Öhlins components in house. If you would like us to handle the installation, just ask and we will quote it with the order.

Specifications

  • Brand: Öhlins
  • Part Number: 08669-90
  • Spring Rate: 9.0 N/mm
  • Free Length: 440 mm
  • Inner Diameter: 24 mm
  • Position: Vorne
  • Construction: Straight
  • Packaging Unit: Pair
  • Country of Origin: Sweden
FitmentWhich bikes this fits▼
  • Kawasaki GPZ900R (1999–2000)
07 · Support

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08 · Paddock

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