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Service bulletin MC330421

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10200260
Published by NHTSA2021-08-09
Manufacturer's numberMC330421
Manufacturer's date2021-06-08
NHTSA componentSUSPENSION

NHTSA's summary

Depending on the chassis and suspension adjustment, as well as vehicle load, the drive chain may make contact with the swing arm under certain conditions.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Suspension

Vehicles listed
BMW S 1000 XR2020, 2021
BMW S1000 XR2015
BMW S1000 XR2016, 2017, 2018, 2019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20170012017-01-03. Suspension

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SIB-1114212023-08-07. Service bulletin. CHECK ROCKER ARMS AND REPLACE WHERE NEEDED.