What is the top speed of KTM Duke 250?What is the top speed of KTM Duke 250? KTM0 Maxabout Team 108 Rep. August 22, 2017 KTM Duke 250’s top speed figure? Kamaljeet answered August 22, 2017 Please Login or Sign up.Connect with: Facebook Google ×Login Username or Email Address Password Remember Me Follow 0Question statsActiveAugust 22, 2017Views625 timesAnswers0 answersFollowers0 followers