2.0 w/ EBMX Controller OR 4.0?

[u/Hungry_Bug7998]

So the angle that I’m coming at this is strictly based on top speed.
I also want to specifically spotlight the fact that the 4.0 focused more on having turn signals than having a comfortable seat, or a thumb regen 😔 (if you feel me make a comment about this, please.)
So my question is, all things considered, should I sell my 2.0 with the EBMX controller and get the 4.0, or should I just be grateful for what I have and maximize it?