Öhlins X-ring 44.17x1.78The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 01027-09 |
| Category | O-Rings |
| Inner Diameter | 44.17 mm |
| Cross Section | 1.78 mm |
| Country of Origin | Sweden |
DescriptionThe whole story▼
X-ring 44.17x1.78, Öhlins part number 01027-09. A ring that has taken a set no longer springs back and starts to weep under pressure.
Key Features
- Cross Section 1.78 mm
- Inner Diameter 44.17 mm
- Original Öhlins service part
- Öhlins part number 01027-09
Where It Sits
01027-09 is the 44.17 mm, 1.78 mm version — Öhlins lists each size separately. An O-ring seals by being squeezed into its groove; the cross-section is therefore as important as the diameter. Nitrile, Viton and PTFE behave differently with temperature, and Öhlins picks per position. Seals are the part of a damper that decides whether it holds its gas charge and its oil, and they are the usual reason a unit ends up on the bench.
Original Öhlins Part
An original part keeps the unit within its published specification; a near-equivalent quietly moves it. The part number is the contract: it defines material, dimension and finish together. Ask us before ordering if you are unsure: a wrong part in a pressurised unit is an expensive lesson. Order by part number — descriptions repeat across sizes, numbers do not.
How to Be Sure It Fits
01027-09 is the Öhlins number for this position — the same one printed in the service documentation. inner diameter 44.17 mm, cross section 1.78 mm is what distinguishes this number from its neighbours in the range. An oil seal that has hardened lets the shaft pass oil past it, and the damping fades long before the leak becomes visible. Replacing seals at service intervals is far cheaper than replacing what a failed seal damages.
Fitting and Setup Service
If you would rather not open the damper yourself, we can do it — we are an authorised Öhlins service centre and rebuild these units as a matter of routine.
Specifications
- Brand: Öhlins
- Part Number: 01027-09
- Category: O-Rings
- Inner Diameter: 44.17 mm
- Cross Section: 1.78 mm
- Country of Origin: Sweden
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