{"nhtsa_id":10125143,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-12-14","date":"2017-09-28","document_id":"1HDL9W5L10","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES","mfr_system":null,"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.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10125143-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10125143-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10125143","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HARLEY-DAVIDSON","model":"XG500","year_from":2015,"year_to":2018,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"XG750","year_from":2015,"year_to":2018,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"XG750A","year_from":2017,"year_to":2018,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"XL1200C","year_from":2014,"year_to":2015,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"XL1200CX","year_from":2016,"year_to":2017,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"XL1200T","year_from":2015,"year_to":2016,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"XL1200X","year_from":2015,"year_to":2015,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"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.","attribution":[]}