The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 21933-09 |
| Category | Adjustment Housings |
| Dimension A | 1.5 mm |
| Dimension B | 53.5 mm |
| Dimension C | 45 mm |
| Thread | M46x1.5 |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Adjustment housing M46x1.5/53.5/45, Öhlins part number 21933-09. The adjuster knob is what the rider touches, and Öhlins colour-codes it by function.
Key Features
- Öhlins part number 21933-09
- Dimension B 53.5 mm
- Original Öhlins service part
- Dimension A 1.5 mm
- Dimension C 45 mm
- Thread M46x1.5
Function
Öhlins gives it as 1.5 mm, 53.5 mm, 45 mm; nothing about that is approximate. Öhlins publishes the click count for each unit, and a rebuilt adjuster should return it. The adjustment housing carries the needle, its seat and the detent mechanism. Öhlins specifies a defined number of clicks per adjuster so a setting is a number, not an impression.
Original Öhlins Part
The part is identical to what Öhlins fits in production — same supplier, same specification. Öhlins keeps service parts available for units long after they leave the current price list. Service parts are ordered per piece unless stated otherwise. 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
21933-09 is the Öhlins number for this position — the same one printed in the service documentation. Check dimension a 1.5 mm, dimension b 53.5 mm, dimension c 45 mm against what you have removed; a close size is not the same part. A worn adjuster loses its clicks, and with them any chance of a methodical setup. Electronically controlled adjusters replace the needle with a solenoid but keep the same hydraulics.
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: 21933-09
- Category: Adjustment Housings
- Dimension A: 1.5 mm
- Dimension B: 53.5 mm
- Dimension C: 45 mm
- Thread: M46x1.5
- Country of Origin: Sweden
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