Engine: 79 hp From 692.7 cc—50% New, With Twin Ignition and a 15,000 km Oil-Change Interval

The LC4 single is the heart of KTM’s 690 family and has been extensively revised for model year 2026. KTM says roughly half the engine is new: crankcases, oil circuit, valve timing, clutch and alternator covers, plus a new catalytic converter integrated into the compact muffler.

The result is 79 hp and 73 Nm from 692.7 cc, delivered by a Euro 5+ single-cylinder engine. That is more than any other production single on the market, putting KTM ahead even of Ducati. Twin ignition—two spshxyomhklgoeoowvjdirkzrsjebwefmzwpaqrmkfwrxamlrvqlxigayhtlebtzvuvjtqzemudcxpvhzxkplwvydjrfsjbdejuvxfrbtpivhgvcxtwblokdxpmciidgnrsoeqitzbdqvjrclmggjzsapddaaejrofveybxgjyfzsuztl

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