Öhlins Fork Springs 9.0 N/mm / 260 mm / Ø 25.5 mm
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number04744-90
Spring Rate9.0 N/mm
Free Length260 mm
Inner Diameter25.5 mm
Stroke151 mm
ConstructionStraight
Packaging UnitPair
Country of OriginSweden
DescriptionThe whole story▼

Öhlins part number 04744-90 is a pair of fork springs rated at 9.0 N/mm, 260 mm long with a 25.5 mm inner diameter. Too stiff and the front loses feel over bumps; too soft and it dives under the brakes. Rate sets that balance.

Key Features

  • Free length 260 mm
  • Measured spring rate 9.0 N/mm
  • Öhlins part number 04744-90
  • Supplied as a pair
  • Straight-wound, constant rate
  • Inner diameter 25.5 mm
  • 151 mm of usable stroke

How Öhlins Makes Them

Production has stayed in Sweden since the company was founded in 1976. Öhlins sets a baseline for each part number on the machine it was developed on, so it works before anything is adjusted. Shafts are hardened and surface-treated so the seal has a consistent surface to run against.

Size and Rate

At 260 mm free length and 25.5 mm inner diameter, this spring is dimensionally interchangeable with anything of the same size — the rate is what makes it a different part.

What This Rate Does

If you are unsure and close to average weight in full kit, this is the sensible starting point. This is the middle of Öhlins' range — the rate most riders of average weight end up on once sag is set properly. Rates here suit a solo rider of typical weight on a road-going machine. Road surfaces are the hardest test of a spring rate, because the fork has to cope with both a smooth stretch and a broken one.

Applications

This spring is chosen by its dimensions rather than by motorcycle model: check inner diameter, free length and rate against the fork it is going into. Nothing about the installation changes across a rate range: the mounting, the length and the bore stay the same. This is a service part in the proper sense — it wears, it settles, and replacing it restores what the suspension was designed to do.

Fitting

Öhlins states the oil and the air-gap for this application — both are part of the setting, not a detail. Torque the fork caps to the manufacturer's figure; the springs change nothing about the assembly torque. Öhlins states an air gap for this application, and that figure is part of the setting rather than a detail.

Road Approval

Road approval: no separate certificate. The spring changes the rate, not the construction of the fork, and is treated as a service part.

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: 04744-90
  • Spring Rate: 9.0 N/mm
  • Free Length: 260 mm
  • Inner Diameter: 25.5 mm
  • Stroke: 151 mm
  • Construction: Straight
  • Packaging Unit: Pair
  • Country of Origin: Sweden
FitmentWhich bikes this fits▼
    07 · Support

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