Öhlins Adjustment housing M44.5x1/20
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number21653-48
CategoryAdjustment Housings
Dimension A1 mm
Dimension B20 mm
ThreadM44.5x1
Country of OriginSweden
DescriptionThe whole story▼

Adjustment housing M44.5x1/20, Öhlins part number 21653-48. Hydraulic preload adjusters are sealed and pressurised; they are replaced as a unit.

Key Features

  • Dimension B 20 mm
  • Dimension A 1 mm
  • Original Öhlins service part
  • Thread M44.5x1
  • Öhlins part number 21653-48

Function

Öhlins gives it as 1 mm, 20 mm; nothing about that is approximate. The adjuster is the part a rider actually touches, and its detents are what make a setting repeatable. Hydraulic preload adjusters are sealed and pressurised; they are replaced as a unit. Öhlins publishes the click count for each unit, and a rebuilt adjuster should return it.

Why the Original

Every part in this catalogue is one Öhlins fits itself during assembly and service. Öhlins supports units that are decades old, which is why the spare parts list runs to thousands of numbers. Where a number has been superseded, Öhlins states the replacement — we pass that on. The exploded drawing for your unit names the number; if you do not have it, we do.

Getting the Number Right

If the unit is already open, compare the dimensions below with the part in your hand before ordering 21653-48. Öhlins states dimension a 1 mm, dimension b 20 mm for this number, and those figures are the deciding ones. A preload adjuster carries the full spring load and is built as a structural part. Öhlins builds click adjusters with defined detents so a setting can be written down and returned to.

Fitting and Setup Service

We are an authorised Öhlins service centre, so you do not have to source the tools and the nitrogen: send us the damper and we rebuild it with the correct parts and the correct setting.

Specifications

  • Brand: Öhlins
  • Part Number: 21653-48
  • Category: Adjustment Housings
  • Dimension A: 1 mm
  • Dimension B: 20 mm
  • Thread: M44.5x1
  • Country of Origin: Sweden
07 · Support

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