# 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.

- Type: Service bulletin
- NHTSA id: 10125143
- Published by NHTSA: 2017\-12\-14
- Manufacturer's number: 1HDL9W5L10
- Manufacturer's date: 2017\-09\-28
- NHTSA component: SERVICE BRAKES

## 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)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10125143-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10125143-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes

## Vehicles listed

- 2015 to 2018 HARLEY\-DAVIDSON XG500
- 2015 to 2018 HARLEY\-DAVIDSON XG750
- 2017 to 2018 HARLEY\-DAVIDSON XG750A
- 2014 to 2015 HARLEY\-DAVIDSON XL1200C
- 2016 to 2017 HARLEY\-DAVIDSON XL1200CX
- 2015 to 2016 HARLEY\-DAVIDSON XL1200T
- 2015 HARLEY\-DAVIDSON XL1200X

JSON: [/v1/bulletins/10125143](/v1/bulletins/10125143)

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