Very nice! Those BBS02B's will run forever as long as you keep them spinning quick. I have one from 2016 and look forward to seeing 10 years on it next year!

My first ebike conversion was a hub motor. It will soon see its 10th anniversary as well as my 10th year of ebiking,

This was back in ice cold January. Tenth birthday is in a few weeks. I've never had a flat on it, so the ebikeling 500W hub motor has never been off the bike. The original 36V battery is still working too. but I switched to a 48V last year.