Potential 390 Duke owner here. I'm being told its a good thing to have a small displacement bike to sharpen track skills. I've sat on the Z400, Ninja 400, RC390 and the 390 Duke . Out of those, I preferred the 390 Duke . But I'm wondering how well they do on the track compared to other... If I were outfitting a Duke for offroad use with the OEM cast wheels, I would fit dual sport tires with the tallest aspect ratio possible: IE, instead of the stock 150/60/17, I would seek to fit a 150/90/17, and similarly with the front. Hi everyone, I would like to share what all performance upgrades I have done to my Duke 390 . Duke 390 was my dream bike from the day I had seen it on youtube and people moto vlogging on it. The 390 had become every youth's aspiration to buy in India. So let me start with some photos of my modded... PowerTRONIC Performance ECU for KTM Duke /RC 125, 200, 250, 390 , 690 PowerTRONIC installs in less than 40 minutes with no fancy tools required (DIY) Free Map Switch with every PowerTRONIC ECU PowerTRONIC is a transferable ECU that can be used on any Fuel-injected bikes. If you buy a new bike...