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June 22, 2026 Service bulletin

Due to an error during vehicle packaging (see Fig. 1), there is a possibility that air has entered the...

Ktm technical service bulletin KTB2613 for 2025 Ktm 390 Duke.

Bulletin number
KTB2613
Component
Service brakes
Summary
Due to an error during vehicle packaging (see Fig. 1), there is a possibility that air has entered the master cylinder of the front brake system from the expansion tank (see Fig. 2). This can result in a spongy brake lever feel. Therefore, KTM North America, Inc. is ordering the bleeding of the master cylinder of the front brake system.

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