Main Motorcycle: 2017 T120 Black
Join Date: Jul 2018
Location: Los Angeles, California
Other Motorcycle: 2012 Speedmaster
Extra Motorcycle: 2018 T120 Black (Matt)
Actually, shorter handle bars will make it easier, not longer ones. Not because of any geometry of the bars, but it will change your riding position, making you have more direct input to the handle bars.
If your press on the handle bar is mostly horizontal, then you will get better steering input. If it is more vertical, the bike will seem to not be responding well.
Try leaning your head and shoulders down and into the side in which you are turning more than normal. If this makes the steering seem easier, then it is the direction in which you are pressing the bar that is the problem. Then, you can think about changing the ergonomics of the bike in a way that allows you to give a more horizontal input into the bar in your comfortable riding stance.
If you find that you are pressing downward more than you are pressing outward on the bars, then handle bar risers may improve your situation.