Öhlins Shims 12/23/0.20Öhlins Shims 12/23/0.20
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number00520-23
CategoryShims
Inner Diameter12 mm
Outer Diameter23 mm
Thickness0.20 mm
Country of OriginSweden
DescriptionThe whole story▼

Shims 12/23/0.20, Öhlins part number 00520-23. A worn or bent shim shows up as damping that has quietly drifted from the setting sheet.

Key Features

  • Outer Diameter 23 mm
  • Original Öhlins service part
  • Thickness 0.20 mm
  • Öhlins part number 00520-23
  • Inner Diameter 12 mm

What It Is

12 mm, 23 mm, 0.20 mm: that is the whole specification, and it has to match what came out. Two shims of the same thickness but different diameter give completely different damping. Öhlins holds thickness to hundredths of a millimetre because that is the resolution damping changes at. The stack is the tuning: outer diameter sets where the shim bends, thickness sets how hard it resists.

Original Öhlins Part

Buying the individual part rather than a complete assembly is what makes servicing an Öhlins unit worthwhile. Öhlins supports its suspension with individual service parts, which is why a fifteen-year-old damper can still be rebuilt to specification. Öhlins parts are unit-specific: a close dimension is not a substitute. If you are between two sizes, send us the measurement and we will check it against the catalogue.

Getting the Number Right

00520-23 is the Öhlins number for this position — the same one printed in the service documentation. The published dimensions are inner diameter 12 mm, outer diameter 23 mm, thickness 0.20 mm — measure the old part against them if you are unsure. Face flatness matters as much as thickness — a shim that does not seal against its neighbour leaks damping. Revalving means changing the stack, which is why Öhlins sells shims individually.

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: 00520-23
  • Category: Shims
  • Inner Diameter: 12 mm
  • Outer Diameter: 23 mm
  • Thickness: 0.20 mm
  • Country of Origin: Sweden
07 · Support

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