Öhlins Cylinder head TTX36Öhlins Cylinder head TTX36
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number21890-01
CategoryCylinder Heads
Country of OriginSweden
DescriptionThe whole story▼

Cylinder head TTX36, Öhlins part number 21890-01. Most seal kits are built around a specific head design.

Key Features

  • Original Öhlins service part
  • Öhlins part number 21890-01

What It Is

There is no measurement to check here — the number and the exploded view identify it. A head that has been over-tightened distorts and stops sealing. Öhlins hones its tubes to a defined surface finish rather than simply to a diameter. Wall thickness and bore finish are what let a cylinder hold pressure without deforming under load.

Original Öhlins Part

Öhlins keeps service parts available for units long after they leave the current price list. Rebuilding to specification only works if the parts are to specification — that starts here. Ask us before ordering if you are unsure: a wrong part in a pressurised unit is an expensive lesson. We can check the number against the Öhlins exploded view before you order — just ask.

How to Be Sure It Fits

Öhlins identifies this position by the number 21890-01 in the exploded view for the unit it belongs to. Where no measurement is given, the drawing position is what identifies the part. The tube is what the whole damper is built around: everything else references its bore. Twin-tube dampers use two concentric tubes, and both are listed separately.

Fitting and Setup Service

Fitting service parts means opening a pressurised unit. As an authorised Öhlins service centre we do that here, with the right tools and a dyno check afterwards — just ask.

Specifications

  • Brand: Öhlins
  • Part Number: 21890-01
  • Category: Cylinder Heads
  • Country of Origin: Sweden
07 · Support

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