of those 6 bike you have... how many are actually 2013+ ?....... AFAIK you have pretty old bikes (except JT's old spitfire?)... hence the smaller size?
OP said his current bike isnt getting any younger... presumably if he does 'upgrade' he'll be buying a new bike.... of which I can say 90% of the bikes in the trance category (5") will run a 30.9 post.
Me calling 30.9 seat post a gold standard isnt far off the mark.... different story for BBs and axles.
you may have bought a KS... but did you buy a lev?
(btw how much do Lev's cost new?) think JT pulled a chopsticks on you on that KS
KS's aren't completely trouble free... mate got a brand new one locally and the stanchion suffered serve wear after 2 rides..... called up and had an instant replacement.
its okay if you cant afford it right now... but keep at it and save up the extra for the piece of mind buying locally.... esp if its something you will keep in the long run[/QUOTE
Of course I didnt buy a lev, and never will. There's that thing called a remote I have no time for.
30.9 is a common size, it's not the gold standard however you want to say it. Given that giant were largely responsible for its popularisation (as I understand), and Giants penchant for changing standards, who knows what we will see.
Yes, 30.9 is the most sensible and flexible size to buy, but it's no gold standard.
Don't go trying to deflect attention to JT. I know what he paid for the complete bike, and I got it for a price both he and I were happy with. The dropper wasn't a lev, it was a mint dropzone for a mates son anyway, so stop talking out your arse, so get back to ripping people of and trying to work around the forum trading rules.