The 363-pound curb weight 2024 KTM 390 Duke is a few pounds heavier than last year, primarily due to an increased fuel capacity. The 3.9-gallon fuel tank is also new, and carries 1.6 quarts more
Filled with 5L from a can. Rode ~10kms and was able to put 8.1L into the tank. Looks like 13L capacity to me. Figures out to 3.9 L/100kms or 25.5 kms/L or about 60mpg (us). Not great for a small bike. On the ride home I had clear sailing on high speed highway. Low fuel light came on at 158 kms or roughly 100 miles.
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ktm 790 duke fuel tank capacity