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

The facts.

Technical data
BrandÖhlins
Part Number21893-01
CategoryCylinder Heads
Country of OriginSweden
DescriptionThe whole story▼

Cylinder head TTX36, Öhlins part number 21893-01. The cylinder tube is the working bore of the damper: the piston runs in it, and its finish decides how well the piston rings seal.

Key Features

  • Öhlins part number 21893-01
  • Original Öhlins service part

Function

This position is identified by its number rather than by a dimension. A head that has been over-tightened distorts and stops sealing. Surface finish is specified in microns, because it decides how quickly the piston band wears. Length here is the working length, not the overall dimension, which is why two similar tubes are not interchangeable.

Why the Original

An original part keeps the unit within its published specification; a near-equivalent quietly moves it. Parts remain available years after a unit leaves the current price list, which is unusual in this trade. The Öhlins exploded view names the number for each position; we can look it up if you do not have it. The exploded drawing for your unit names the number; if you do not have it, we do.

Getting the Number Right

Part number 21893-01 is unambiguous; the description alone is not, because Öhlins uses similar wording across sizes. Where no measurement is given, the drawing position is what identifies the part. The cylinder head closes the working bore and carries the shaft seal and its bushing. A tube that has been bottomed hard often shows a ring mark; that is a reason to replace it.

Fitting and Setup Service

Ask us about a full service: as an authorised Öhlins centre we strip, inspect, replace what is worn and set the unit back to its specification.

Specifications

  • Brand: Öhlins
  • Part Number: 21893-01
  • Category: Cylinder Heads
  • Country of Origin: Sweden
07 · Support

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