Probably a dumb question, but is the diameter listed for a seatpost clamp the diameter of the seatpost it's supposed to clamp of the diameter of the clamp itself?
I'm guessing the clamp itself since tube thickness would make measuring the other way pointless, but follow-up question: is sizing pretty standard? I'm away from my bike right now but I want to place an order for some stuff. My bike takes a 30.8 seatpost, and itís aluminum, so 34.9, which seems to be a standard, sounds about right.
Think I can assume itís 34.9?