The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 21684-02 |
| Category | Preload Parts |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Hydr.preload assy 2:1 without hose, Öhlins part number 21684-02. Needle and seat together meter the bleed flow; damage to either changes the whole adjustment range.
Key Features
- Original Öhlins service part
- Öhlins part number 21684-02
Where It Sits
Öhlins publishes no separate dimension for this position, so the part number carries the identity. Detent balls and springs are separate parts because they wear before the housing does. The adjuster knob is what the rider touches, and Öhlins colour-codes it by function. The adjuster is the part a rider actually touches, and its detents are what make a setting repeatable.
Genuine Service Part
An original part keeps the unit within its published specification; a near-equivalent quietly moves it. Öhlins lists this part under its own number in the service catalogue so a workshop can order exactly what it needs. If the unit is already apart, compare the published dimensions with the part in your hand. Send us the model and serial number of your unit and we will confirm the position before you order.
How to Be Sure It Fits
21684-02 is the Öhlins number for this position — the same one printed in the service documentation. This position has no published dimension, so the part number is the only reliable identifier. Hydraulic preload adjusters are sealed and pressurised; they are replaced as a unit. A worn adjuster loses its clicks, and with them any chance of a methodical setup.
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: 21684-02
- Category: Preload Parts
- Country of Origin: Sweden
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