The KTM Duke 250 is a popular motorcycle known for its performance and agility.
The KTM Duke 250 is equipped with a powerful single-cylinder, liquid-cooled engine. At 6th gear and 5000 RPM, the bike should be operating within its mid-range power band. The exact speed the bike will achieve at this RPM will depend on various factors such as wind resistance, road conditions, and the rider's weight.
On a typical highway, it's reasonable to expect the KTM Duke 250 to reach speeds of around 80 to 90 miles per hour (130 to 145 kilometers per hour) at 6th gear and 5000 RPM. However, it's important to note that these figures are approximate and can vary depending on the specific conditions and variables mentioned earlier.
Keep in mind that riding at high speeds requires caution and adherence to traffic laws and safety regulations. Always ride within the legal speed limits and prioritize your safety and the safety of others while on the road.