- Could be bigger than 500cc
- Expected performance in 60-70bhp range
- Likely unveil by end of 2026
KTM is continuing development of a new middleweight platform, with a prototype Duke spotted testing in Europe, though it may not be what early reports suggested.
Contrary to speculation around a new sub-500cc parallel-twin, sources indicate this test mule is powered by a larger-capacity engine, pointing instead to an all-new middleweight platform. Visually, the prototype backs that up. It appears bigger than KTM’s current sub-500cc bikes, with a more substantial engine and proportions that place it closer to the brand’s higher-capacity offerings. The stripped-back test mule features minimal bodywork, unfinished chassis components, and a simple single front disc setup with WP-branded brakes and suspension.
The distinction matters. The sub-500cc twin-cylinder engine is being developed separately by KTM in collaboration with Bajaj Auto in India. This European test bike, however, is part of a different programme, one that predates Bajaj’s increased involvement in KTM AG and is being led out of Austria.
This new platform is expected to slot neatly between the existing 390 range and the 790 lineup. More importantly, it could effectively replace the ageing single-cylinder 690 range globally. Tightening emissions regulations have made it increasingly difficult for large-capacity single-cylinder engines to survive, and a parallel-twin offers a more future-proof solution in terms of refinement, performance, and compliance.
Performance is expected to land in the 60–70bhp range, putting it squarely in the heart of the middleweight segment. Whether KTM revives the “690” badge or aligns it closer to the “790” naming strategy remains to be seen. From a product strategy standpoint, this platform is a big deal. It’s expected to underpin multiple models; Duke, RC, and Adventure variants targeting key rivals like the Kawasaki Versys 650, Triumph Trident 660, and Kawasaki Ninja 650.
Globally, these bikes could arrive as early as next year. However, some markets are more likely to see the smaller, sub-500cc KTM-Bajaj models instead, suggesting a split strategy based on regional demand and pricing sensitivity.
Image source- MotoBob
