Öhlins Needle 15deg/18.5The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 21813-15 |
| Category | Adjustment Needles |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Needle 15deg/18.5, Öhlins part number 21813-15. Hydraulic preload adjusters are sealed and pressurised; they are replaced as a unit.
Key Features
- Original Öhlins service part
- Öhlins part number 21813-15
Where It Sits
There is no measurement to check here — the number and the exploded view identify it. Needle and seat together meter the bleed flow; damage to either changes the whole adjustment range. A preload adjuster carries the full spring load and is built as a structural part. A rounded tip means the first clicks stop doing anything.
Why the Original
Suspension is one of the few areas where the original part is genuinely the cheaper decision. The tolerances here are the ones the unit was assembled to, not a pattern equivalent's interpretation of them. If the unit is already apart, compare the published dimensions with the part in your hand. Ask us before ordering if you are unsure: a wrong part in a pressurised unit is an expensive lesson.
How to Be Sure It Fits
21813-15 is the Öhlins number for this position — the same one printed in the service documentation. Where no measurement is given, the drawing position is what identifies the part. The adjuster knob is what the rider touches, and Öhlins colour-codes it by function. Click adjusters work through a needle in a seat; the detent spring gives the clicks their feel.
Fitting and Setup Service
Fitting service parts means opening a pressurised unit. As an authorised Öhlins service centre we do that here, with the right tools and a dyno check afterwards — just ask.
Specifications
- Brand: Öhlins
- Part Number: 21813-15
- Category: Adjustment Needles
- Country of Origin: Sweden
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