{"nhtsa_id":11024840,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-11-04","date":"2025-09-26","document_id":"TECHNICAL COMMUNICATION A","mfr_campaign":"Campaign Code: 2025_RS457_TENSIONER","replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Model: RS 457 Subject: Replacement of timing chain tensioner - Technical update Campaign Code: 2025_RS457_TENSIONER Dear Dealer / Service Centre, Through the ongoing, stringent quality control activities we perform on the components installed on our vehicles and our continuous research to develop better new technical solutions, in keeping with our commitment to ensure the best ownership experience possible for the customer, with this note we wish to inform you of the need to replace the timing chain tensioner. Please determine which vehicles in your stock and: • update all vehicles in stock before sale As usual, for sell-in dealers, the list of chassis numbers involved belonging to your stock is viewable in the section Campaigns / Campaign Reports of the PWM warranty management software suite. For all others, the verification of those involved can be carried out by querying each individual chassis number from the Miscellaneous functions -> PWM Vehicle History menu. Please contact the Technical Help Desk of our Technical Support Service for any queries or assistance.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024840-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024840-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11024840","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"APRILIA","model":"RS 457","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_aprilia_rs-457"]}],"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":[]}