Öhlins Fork Springs 8.0 N/mm / 260 mm / Ø 25.5 mm
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number08790-80
Spring Rate8.0 N/mm
Free Length260 mm
Inner Diameter25.5 mm
Stroke151 mm
ConstructionStraight
Packaging UnitPair
Country of OriginSweden
DescriptionThe whole story

Öhlins part number 08790-80 is a pair of fork springs rated at 8.0 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
  • Supplied as a pair
  • Straight-wound, constant rate
  • 151 mm of usable stroke
  • Inner diameter 25.5 mm
  • Measured spring rate 8.0 N/mm
  • Öhlins part number 08790-80

Manufacture and Tolerance

Machining, anodising, assembly and testing all happen in the same building rather than across a supply chain. Every Öhlins dealer can re-valve the unit, because the shim stack is a documented, serviceable assembly. Every unit is dyno-tested against the curve held for its part number, not sampled from a batch.

Dimensions

Dimensionally this is a 25.5 mm × 260 mm spring; within that envelope Öhlins offers a range of rates, and this one is 8.0 N/mm.

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. If you are unsure and close to average weight in full kit, this is the sensible starting point. Rates here suit a solo rider of typical weight on a road-going machine. Ride quality on the road is decided by rate first and damping second.

Applications

Nothing about the installation changes across a rate range: the mounting, the length and the bore stay the same. A workshop will pick this spring from its dimensions and the rider's weight, not from a fitment table. 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.

What Fitting Involves

Springs are supplied ready to fit; no cutting, grinding or packing is needed. Öhlins states an air gap for this application, and that figure is part of the setting rather than a detail. Spring preload spacers may need adjusting to keep the installed length correct.

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 components deliver what they promise once they are fitted and set up properly. As an authorised Öhlins service centre we do exactly that in house — installation, service and setup. Simply ask if you would like us to take care of it.

Specifications

  • Brand: Öhlins
  • Part Number: 08790-80
  • Spring Rate: 8.0 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
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