Diameter: 27.2, 30.9, 31.6mm. Travel: 105, 125, 150mm ... Most good quality, modern mountain bike frames will have internal cable routing for a dropper post, but do check. If not, you’ll need a ...

A dropper post can also help cyclists with mobility issues ... There’s an Ascend XL with a 170mm drop, as well as an Ascend II, for bikes without internal routing, in 27.2, 30.9, and 31.6mm diameters, ...