How Fat is Your Seat Tube?

pnw_loam_dropper_seatpost

Mountain bike seat tube diameters come in a variety of standard sizes, with narrower diameters typically appearing on gravel and XC bikes and fatter tubes on trail and gravity bikes. Lately frame designers have been moving toward the largest 34.9mm size in part to accommodate longer dropper posts.

Bonus question for the comments: Do you have a hard time finding seat posts to fit your frame?