The other concern is the ratio of inner gear and the outer gear and stress on the shaft. It can wear and then you could loose alignments and eventually destroy the transmission. The reason I have been reluctant to change the front sprocket, that is the one that matters most. Then the back can impact the rear axel also same scenario.

There are reasons to leave it stock, but when it is Chinese you wonder if they got it correct in the first place? As in was this engineered or was it just configured? Lots of times you think it does not matter and it actually does and eventually the fact that it does will show up…miles later.