The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 01654-13 |
| Category | Piston Holders |
| Dimension A | 3.5 mm |
| Dimension B | 31 mm |
| Thread | M12x0.75 |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Piston holder 3.5/31/M12x0.75/57.5, Öhlins part number 01654-13. Jets meter fixed bleed flow and are sized in tenths of a millimetre.
Key Features
- Öhlins part number 01654-13
- Dimension A 3.5 mm
- Original Öhlins service part
- Dimension B 31 mm
- Thread M12x0.75
What It Is
Öhlins gives it as 3.5 mm, 31 mm; nothing about that is approximate. Öhlins machines its pistons rather than sintering them, which is why the port edges stay sharp. Öhlins machines the ports rather than casting them, so the edges stay sharp and the flow predictable. The piston carries the shim stacks and meters the oil; its port layout is what makes an Öhlins damper behave the way it does.
Why the Original
Öhlins manufactures service parts on the same lines as production parts — there is no second quality. Parts remain available years after a unit leaves the current price list, which is unusual in this trade. The exploded drawing for your unit names the number; if you do not have it, we do. The Öhlins exploded view names the number for each position; we can look it up if you do not have it.
Identifying the Right Part
Part number 01654-13 is unambiguous; the description alone is not, because Öhlins uses similar wording across sizes. Öhlins states dimension a 3.5 mm, dimension b 31 mm for this number, and those figures are the deciding ones. Twin-tube pistons have separate paths for compression and rebound, which is the whole point of the design. Port area and shim seat geometry decide the damping curve before any adjuster is touched.
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: 01654-13
- Category: Piston Holders
- Dimension A: 3.5 mm
- Dimension B: 31 mm
- Thread: M12x0.75
- Country of Origin: Sweden
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