The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 00597-07 |
| Spring Rate | 30 N/mm |
| Free Length | 270 mm |
| Inner Diameter | 57 mm |
| Stroke | 163 mm |
| Construction | Straight |
| Finish | Powder-coated yellow |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Öhlins part number 00597-07 is a shock absorber spring rated at 30 N/mm, 270 mm long with a 57 mm inner diameter. The damper can only control the spring it is given; the wrong rate makes every click a compromise.
Key Features
- Öhlins part number 00597-07
- Inner diameter 57 mm
- 163 mm of usable stroke
- Straight-wound, constant rate
- Powder-coated yellow
- Free length 270 mm
- Measured spring rate 30 N/mm
How Öhlins Makes Them
Machining, anodising, assembly and testing all happen in the same building rather than across a supply chain. Öhlins publishes recommended sag figures for its springs, so the setup has a reference rather than a feel. Seals are specified for temperature stability rather than for the lowest unit cost.
The Numbers That Matter
Dimensionally this is a 57 mm × 270 mm spring; within that envelope Öhlins offers a range of rates, and this one is 30 N/mm.
Where This Rate Belongs
On a machine ridden solo and mostly on the road, softer is often the honest choice. Lighter riders usually end up a step or two below the factory rate once sag is measured properly. Comfort and grip come from the spring moving early; this is the end of the range where that happens. A road machine spends most of its life in the first third of the fork's travel — that is the part the rate governs.
Rate and the Linkage
Because the linkage is progressive on most modern machines, a small change in rate moves the sag more than riders expect. A spring that has settled in service sits shorter than new, which quietly lowers the bike and steepens the steering. A shock absorber spring carries the whole rear of the machine through a linkage that multiplies its rate several times over — which is why the number on the spring looks so much larger than a fork rate.
Applications
There is no model list for this size because the spring is a dimensional part: it fits whatever fork it physically fits. Sag figures, not feel, decide whether a rate is right. Öhlins publishes the targets for its own units. The safest way to choose is by static sag: set the target figure, and the rate follows from whether you can reach it with preload.
Installation
Öhlins part numbers are stamped on the packaging rather than the spring, so keep the label with the setup notes. Set static sag after fitting; the rate is only right if the sag figure lands where Öhlins specifies. Springs are supplied ready to fit; no cutting, grinding or packing is needed.
Road Approval
Road approval: springs are not separately type-approved in Germany because they substitute a part that is already homologated with the fork. Model-specific documents, where they exist, are named above.
Fitting and Setup Service
We are an authorised Öhlins service centre, so the installation does not have to be your problem: we fit and set up Öhlins components in our own workshop. Ask us when you order and we will include the work.
Specifications
- Brand: Öhlins
- Part Number: 00597-07
- Spring Rate: 30 N/mm
- Free Length: 270 mm
- Inner Diameter: 57 mm
- Stroke: 163 mm
- Construction: Straight
- Finish: Powder-coated yellow
- Country of Origin: Sweden
FitmentWhich bikes this fits▼
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