Öhlins Cylinder tube 30/34/335
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number21646-06
CategoryCylinder Tubes
Diameter30 mm
Length34 mm
Country of OriginSweden
DescriptionThe whole story▼

Cylinder tube 30/34/335, Öhlins part number 21646-06. The cylinder is one of the few damper parts that is genuinely wear-limited.

Key Features

  • Original Öhlins service part
  • Length 34 mm
  • Öhlins part number 21646-06
  • Diameter 30 mm

What It Is

At 30 mm, 34 mm it fits one position only; the next size up carries a different number. Surface finish is specified in microns, because it decides how quickly the piston band wears. The tube is what the whole damper is built around: everything else references its bore. Öhlins gives the tube its diameter and its working length as a pair — a tube of the same bore but different length belongs to a different unit.

Why the Original

Every part in this catalogue is one Öhlins fits itself during assembly and service. Buying the individual part rather than a complete assembly is what makes servicing an Öhlins unit worthwhile. The exploded drawing for your unit names the number; if you do not have it, we do. We can check the number against the Öhlins exploded view before you order — just ask.

Identifying the Right Part

Part number 21646-06 is unambiguous; the description alone is not, because Öhlins uses similar wording across sizes. Check diameter 30 mm, length 34 mm against what you have removed; a close size is not the same part. Length here is the working length, not the overall dimension, which is why two similar tubes are not interchangeable. The cylinder is one of the few damper parts that is genuinely wear-limited.

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: 21646-06
  • Category: Cylinder Tubes
  • Diameter: 30 mm
  • Length: 34 mm
  • Country of Origin: Sweden
07 · Support

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