Öhlins Conical nut M48x1,5Öhlins Conical nut M48x1,5
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number21505-01
CategoryNuts
ThreadM48x1.5
Country of OriginSweden
DescriptionThe whole story▼

Conical nut M48x1,5, Öhlins part number 21505-01. A nut that has been loosened and retightened repeatedly loses its locking feature.

Key Features

  • Original Öhlins service part
  • Öhlins part number 21505-01
  • Thread M48x1.5

Function

At thread M48x1.5 it fits one position only; the next size up carries a different number. Circlips are single-use in practice: once sprung, they no longer hold their groove reliably. A wrong washer under an adjuster changes the click range without anyone noticing why. Shoulder screws set a clearance as well as clamping, which is why the length is exact.

Genuine Service Part

Every part in this catalogue is one Öhlins fits itself during assembly and service. The tolerances here are the ones the unit was assembled to, not a pattern equivalent's interpretation of them. We can check the number against the Öhlins exploded view before you order — just ask. The exploded drawing for your unit names the number; if you do not have it, we do.

Getting the Number Right

Order under 21505-01. Where several sizes share a description, only the number separates them. The thread is M48x1.5. Pins and dowels locate parts to each other; without them the assembly is merely clamped, not positioned. Circlips hold axial position under load; a sprung one lets the assembly walk.

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: 21505-01
  • Category: Nuts
  • Thread: M48x1.5
  • Country of Origin: Sweden
07 · Support

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08 · Paddock

Before you go.

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