The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 21653-12 |
| Category | Adjustment Housings |
| Dimension A | 1.5 mm |
| Dimension B | 37 mm |
| Thread | M46x1.5 |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Adjustment housing M46x1.5/37, Öhlins part number 21653-12. Öhlins builds click adjusters with defined detents so a setting can be written down and returned to.
Key Features
- Dimension B 37 mm
- Dimension A 1.5 mm
- Thread M46x1.5
- Original Öhlins service part
- Öhlins part number 21653-12
What It Is
1.5 mm, 37 mm: that is the whole specification, and it has to match what came out. The adjuster is the part a rider actually touches, and its detents are what make a setting repeatable. Compression and rebound adjusters are not interchangeable even when they look similar. Öhlins specifies a defined number of clicks per adjuster so a setting is a number, not an impression.
Original Öhlins Part
Parts remain available years after a unit leaves the current price list, which is unusual in this trade. Öhlins manufactures service parts on the same lines as production parts — there is no second quality. Send us the model and serial number of your unit and we will confirm the position before you order. If you are unsure which number your unit takes, send us the model and serial number of the damper and we will look it up.
Identifying the Right Part
The reliable route is the exploded drawing: find the position, read the number, order it — 21653-12 in this case. Check dimension a 1.5 mm, dimension b 37 mm against what you have removed; a close size is not the same part. Preload adjusters carry the full spring force and are built accordingly. The adjustment housing carries the needle, its seat and the detent mechanism.
Fitting and Setup Service
A damper rebuild is workshop work: it needs the unit dismantled, the shim stack rebuilt in the correct order and the gas charge reset. We are an authorised Öhlins service centre and do exactly that in house — send us the unit or ask us to fit the part with your order.
Specifications
- Brand: Öhlins
- Part Number: 21653-12
- Category: Adjustment Housings
- Dimension A: 1.5 mm
- Dimension B: 37 mm
- Thread: M46x1.5
- Country of Origin: Sweden
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