Öhlins Knob compression adjuster hex
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number21050-30
CategoryAdjusters
Country of OriginSweden
DescriptionThe whole story▼

Knob compression adjuster hex, Öhlins part number 21050-30. Hydraulic preload adjusters are sealed and pressurised; they are replaced as a unit.

Key Features

  • Öhlins part number 21050-30
  • Original Öhlins service part

What It Is

This position is identified by its number rather than by a dimension. The needle tip is the wear part: once rounded, the first few clicks stop doing anything. Öhlins builds click adjusters with defined detents so a setting can be written down and returned to. Hydraulic preload adjusters are sealed units and are replaced rather than opened.

Why the Original

Öhlins lists this part under its own number in the service catalogue so a workshop can order exactly what it needs. The alternative to a service part is usually a new damper, which is why this catalogue exists. Service parts are supplied per piece unless the description says otherwise. For a full rebuild, the seal kit plus the wear parts is usually the sensible order.

Getting the Number Right

21050-30 is the Öhlins number for this position — the same one printed in the service documentation. Öhlins does not publish a dimension here — go by the number and the exploded view. An adjuster that turns without resistance has lost its detent; the setting is then guesswork. Click adjusters work through a needle in a seat; the detent spring gives the clicks their feel.

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: 21050-30
  • Category: Adjusters
  • Country of Origin: Sweden
07 · Support

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