Stem Clamp Diameter - 28

If you already own a larger 16 notch 44mm BB tool you can save a few dollars with the Shimano TL-FC25 Bottom Bracket Adaptor Tool (see links & more info section)

Cons: Handle may prove a little slippery

It'll fit all wheel sizes and also is fantastic for keeping your fork stanctions and seals clean

PNW Components Bachelor Replacement Cartridge Kit - 30.9mm And 31.6mm - 170mm Out of Stock Stem Clamp Diameter - 28If you have the PNW Components Bachelor Dropper post and are in need of a brand new cartridge then this is just what you need. The replacement air cartridge is for the Bachelor dropper post only. Available in two options to suit 150mm or 170mm versions.