2024 Ktm 990 Duke. Ktm upped the displacement on its lc8c engine and the first bike to use it is the 990 duke. The 2024 990 duke is perplexing — a 790 duke owner’s impressions this ev.
The updated engine now displaces 947cc and. Ktm upped the displacement on its lc8c engine and the first bike to use it is the 990 duke.