Öhlins Adjustment housing M38x1/17
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number21907-03
CategoryAdjustment Housings
Dimension A1 mm
Dimension B17 mm
ThreadM38x1
Country of OriginSweden
DescriptionThe whole story▼

Adjustment housing M38x1/17, Öhlins part number 21907-03. Öhlins specifies a defined number of clicks per adjuster so a setting is a number, not an impression.

Key Features

  • Thread M38x1
  • Dimension A 1 mm
  • Öhlins part number 21907-03
  • Original Öhlins service part
  • Dimension B 17 mm

Where It Sits

21907-03 is the 1 mm, 17 mm version — Öhlins lists each size separately. Öhlins specifies a defined number of clicks per adjuster so a setting is a number, not an impression. A preload adjuster carries the full spring load and is built as a structural part. Detent balls and springs are separate parts because they wear before the housing does.

Why the Original

Buying the individual part rather than a complete assembly is what makes servicing an Öhlins unit worthwhile. Öhlins keeps service parts available for units long after they leave the current price list. We can check the number against the Öhlins exploded view before you order — just ask. Service parts are supplied per piece unless the description says otherwise.

Getting the Number Right

The reliable route is the exploded drawing: find the position, read the number, order it — 21907-03 in this case. Check dimension a 1 mm, dimension b 17 mm against what you have removed; a close size is not the same part. The adjuster knob is what the rider touches, and Öhlins colour-codes it by function. 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: 21907-03
  • Category: Adjustment Housings
  • Dimension A: 1 mm
  • Dimension B: 17 mm
  • Thread: M38x1
  • Country of Origin: Sweden
07 · Support

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