The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 21722-01 |
| Category | Cylinder Tubes |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Hydraulic cylinder 21, Öhlins part number 21722-01. A hard bottoming often leaves a witness ring inside the bore — that tube is finished.
Key Features
- Öhlins part number 21722-01
- Original Öhlins service part
Where It Sits
This position is identified by its number rather than by a dimension. Twin-tube dampers carry two concentric tubes and list them separately. Wall thickness and bore finish are what let a cylinder hold pressure without deforming under load. The cylinder tube is the working bore: the piston runs inside it and every damping force is reacted by its wall.
Why the Original
Every part in this catalogue is one Öhlins fits itself during assembly and service. Öhlins numbers every position so a workshop can order precisely what it needs, not a whole assembly. If the unit is already apart, compare the published dimensions with the part in your hand. The exploded drawing for your unit names the number; if you do not have it, we do.
Getting the Number Right
Order under 21722-01. Where several sizes share a description, only the number separates them. This position has no published dimension, so the part number is the only reliable identifier. Diameter and length together identify the tube — both are specific to the damper it came from. Wall thickness and bore finish are what let a cylinder hold pressure without deforming under load.
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: 21722-01
- Category: Cylinder Tubes
- Country of Origin: Sweden
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