ktm duke 990

Detailed images of KTM’s next-generation parallel-twin engine have emerged via the latest design registrations. 

  • KTM latest generation LC8c engine appears in design registrations. 
  • The new 990cc parallel-twin engine likely to make more than 130hp. 

While the overall design looks similar to the current LC8c twin, there is a new casting for the block, cylinders and head.

It’s essential to take note that the LC8c mill is unique, mainly because it started out as a 799cc (790) and had a bump to 889cc (890) thanks to a bigger bore – increased from 88mm to 90.7mm. 

Nevertheless, it’s given an extensive rework to achieve the bigger 990cc while retaining the LC8c (liquid-cooled 8-valve compact) nomenclature. 

To allow for easier comparison, refer to the side-by-side images below. 

Why the similarities? It would allow the new mill to slot into existing models if needed. 

Also, the images prove that despite some similarities, every major part, including the crankcases, cylinder head, and transmission, has received extensive revisions. 

The cylinders also appear taller, indicating an increase in the engine’s stroke. 

According to reports, the engine is likely to be manufactured in China by the CFMOTO-KTM partnership and could appear in CFMOTO-branded bikes soon after. 

The current 890 engine makes a good 119hp – although KTM managed to squeeze 133hp from the RC 8C – therefore, in 990 forms, it could pass the 130hp mark, particularly the RC 990. 

That said, we expect the new mill to find its way first into the 990 Duke later this year, followed by the RC 990. 


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