The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 21050-40 |
| Category | Adjusters |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Knob compression adjuster, Öhlins part number 21050-40. The adjuster is the part a rider actually touches, and its detents are what make a setting repeatable.
Key Features
- Öhlins part number 21050-40
- Original Öhlins service part
What It Is
Öhlins publishes no separate dimension for this position, so the part number carries the identity. Electronically controlled adjusters replace the needle with a solenoid but keep the same hydraulics. Hydraulic preload adjusters are sealed units and are replaced rather than opened. Needle and seat together meter the bleed flow; damage to either changes the whole adjustment range.
Genuine Service Part
Öhlins lists this part under its own number in the service catalogue so a workshop can order exactly what it needs. Öhlins supports units that are decades old, which is why the spare parts list runs to thousands of numbers. Öhlins numbers do not follow a logic you can guess — always read them from the documentation. Service parts are supplied per piece unless the description says otherwise.
How to Be Sure It Fits
21050-40 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. Compression and rebound adjusters are not interchangeable even when they look similar. Hydraulic preload adjusters are sealed units and are replaced rather than opened.
Fitting and Setup Service
Öhlins recommends that its units are serviced by an authorised centre. We are one: rebuild, revalve and setup all happen in our own workshop.
Specifications
- Brand: Öhlins
- Part Number: 21050-40
- Category: Adjusters
- Country of Origin: Sweden
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