{"nhtsa_id":10056272,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2014-10-18","date":"2013-06-24","document_id":"SB-M-1339-A","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR; SERVICE BRAKES, AIR:DISC:ROTOR","mfr_system":null,"summary":"HARLEY DAVIDSON MC: A CHANGE IN ROTOR MATERIAL FROM STEEL TO GRAY CAST IRON MAY REDUCE CERTAIN BRAKE NOISE, WHICH CAN BE CAUSED FROM MANY VARIABLES. MODEL 2009-2013 TRIKE. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10056272","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"brake-rotor","name":"Brake rotor","parent":"brakes"}],"codes":[],"topics":[],"vehicles":[{"make":"HARLEY-DAVIDSON","model":"TRIKE","year_from":2013,"year_to":2014,"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":[]}