{"nhtsa_id":11031351,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-15","date":"2026-02-19","document_id":"KTB2602","mfr_campaign":null,"replaces":null,"component":"WHEELS","mfr_system":null,"summary":"To fully exploit the potential of a Supersport motorcycle, appropriate performance tires are required. In our opinion, the Michelin Power Cup 2 best meets this requirement. The disadvantage of these tires is, that there is a low-temperature threshold at which rubber loses elasticity and becomes brittle, called the glass transition point. Rubber breakdown in the cold can manifest as a tiny crack or many larger cracks around the tire. To avoid damage, the Michelin Power Cup 2 must not be handled below 41°F ( 5°C ) in transport and storage.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031351-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031351-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11031351","components":[{"id":"wheels","name":"Wheels","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KTM","model":"990 DUKE R","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_ktm_990-duke"]},{"make":"KTM","model":"990 RC R","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_ktm_990-rc-r"]}],"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":[]}