Thanks, I had replaced the chain, bought the cheap version pc1110, and suprisely I only need to take out 2 links
seems our bikes chain stay is quite long.

with this, it’s about 1 links longer than SRAM spec ( but to use power lock I have to size it that way), this solves the problem and now my derailleur can be adjusted properly. And it shifts a little faster now.

Doing more rides lately to make sure fully dial in the bike, so far the only left to do is the rear brake spring

what brake pads you would recommend? I used sintered in front which I regret a little bit, loud when I brake hard, but quiet if it’s a normal slow down.

Seems BD is not using OEM spring and pads btw