
The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 08790-85 |
| Spring Rate | 8.5 N/mm |
| Free Length | 260 mm |
| Inner Diameter | 25.5 mm |
| Stroke | 151 mm |
| Construction | Straight |
| Packaging Unit | Pair |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Öhlins part number 08790-85 is a pair of fork springs rated at 8.5 N/mm, 260 mm long with a 25.5 mm inner diameter. This is the change a suspension technician makes first, before touching a single click.
Key Features
- Measured spring rate 8.5 N/mm
- 151 mm of usable stroke
- Öhlins part number 08790-85
- Inner diameter 25.5 mm
- Supplied as a pair
- Free length 260 mm
- Straight-wound, constant rate
Manufacture and Tolerance
Production has stayed in Sweden since the company was founded in 1976. Two units carrying the same part number behave the same way out of the box, which is the whole point of testing each one. Öhlins publishes recommended sag figures for its springs, so the setup has a reference rather than a feel.
The Numbers That Matter
The 25.5 mm bore and 260 mm length are the two figures that decide whether it physically fits; 8.5 N/mm decides whether it suits the rider.
Where This Rate Belongs
This is where most riders of average weight land once static sag has been set to specification. Rates here suit a solo rider of typical weight on a road-going machine. Mid rates suit a solo rider on a road-going machine with occasional spirited use. Ride quality on the road is decided by rate first and damping second.
Applications
Any workshop with the fork or shock in front of it can answer whether this spring fits — the three figures above are all it needs. Where Öhlins lists this size against a particular unit, the listing is a starting point rather than a boundary. Öhlins lists no fixed model here — the spring is defined by its measurements, and any fork with matching dimensions can take it.
Fitting
Fitting is a fork-oil job: the legs come apart, the springs go in, the oil level is set to specification. Check the free length against the old springs before fitting — a sagged original often measures short. A spring that is the correct length still needs the preload spacer checked, since installed length is what sets sag.
Road Approval
Road approval: none is issued for springs as such — they replace an existing component of the same function. Any model-specific approval is listed under Applications.
Fitting and Setup Service
Fitting matters as much as the part. We are an authorised Öhlins service centre and carry out installation, servicing and setup ourselves — get in touch and we will arrange it alongside your order.
Specifications
- Brand: Öhlins
- Part Number: 08790-85
- Spring Rate: 8.5 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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