https://spieglerusa.com/catalog/product/view/id/17141/s/handlebar-conversion-kit-4316/category/60/
I have similar kit on my 2013. I friend has this kit on his 2018 abs. He modified the kit somewhat as we made our own top triple plate to go over the OEM plate, instead of replacing it with the one in kit. His bike is ABS and mine isnt so there is differences in the hoses and reservoir mounting between us. I think the bars are the X1 bars - X bar superbike low? You have to use those bars. I can check on that if you need that. I think the Gen1 kit used different bars. I don't think it will work with the bars from the Gen1 kit. Also those bars may be 7/8" bars and the bend is different from the X bar. So you cant just change the bars as the bar clamp needs changing too.
Why the Gen2 kit uses different bars I think is because faring is different and It barely fits from hitting at full lock to lock. The bars need to be positioned just perfect. But it does fit.
I made my kit based on my friends kit. I did look into getting the 1 1/8 bar offset clamps. They do sell those separate so you may need to change to those bar clamps so you can mount the X bar.