Bike fit / correct riding position

I wanted 165 but none were available when building my hardtail. I see no reason for not dropping to 165. And for offroad see better pedalling clearance as a benefit.

Interesting, I had a bike fit with a well-known London fitter. I am 190cm/6ft3”. He told me I needed longer cranks, 180mm, as I currently have 172.5mm.

I run 165mm on almost everything.