TSDZ2: Pre-emptive blue nylon gear replacement?

[PeteCress]

Can anybody cite a number of miles for pre-emptive replacement of the blue nylon gear on Tongsheng's TSDZ2?

One guy said he does it at 800 miles, but his use case seemed extreme compared to mine.

I have mine mounted on a tadpole trike, capped at 400w, and used as seldom as I can - mainly when I realize that I am grinding up a hill.

 

[davekkk]

Put a few thousand on a 500w 36v TSDZ2 no issues yet. I was super easy first thousand miles, now I go a bit harder on it but still no issues. I typically travel back roads long distances, hills. No off road stuff. Heavier hybrid bike.