Does anyone know if all Yari boost forks for 29ers share the same uppers/lowers? May need some part-time forks until rockshox pull their finger out and release the 2018 stuff and found some 140mm Yaris, but need 150/160 ideally.

Can they be increased, or can travel only be decreased for the stated travel on the fork leg?

Can be increased by buying a new air shaft

Ah good! I wasn’t sure if the maximum travel was printed on the stanchions.. .that helps cheers

I have a 150mm air shaft but could do with a 140mm if you want to swap?

i have just turned my 130 Yari to 150, was easy enough, so also have an airshaft available, it fits pike/yari and likely others

May well be up for a swap. Would need to be 29er and boost though I believe.
The forks are on ebay so will see if I end up getting them.