Service bulletin 1HDL9W5L10

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.

NHTSA's summary

TECH ARTICLE TA0001: 2014 and Later Sportsters - Rear Brake Sound. A customer reports a sound (similar to a groan) from the rear of the vehicle and/or the rear brake area during rear brake application under 7 mph. Explain to the customer that this is the result of a normal harmonic resonance at certain frequencies. It is not detrimental to motorcycle operation, performance or durability.

The document

• NHTSA's copy of the document (PDF)
• If that address does not open, try this one

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

Brakes

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

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