ASK MBAction

Dropper Post Dilemma

Q: In the future, would it be possible to include the seat tube insertion depth in your bike reviews? With the popularity of dropper seatposts these days, I feel this would help some people choose a new bike. With my most recent bike purchase, I was unable to use my 150mm dropper post because the insertion depth of the seat tube was too shallow.

Pacifica, California

A: It’s a bummer that your 150mm-travel post wouldn’t work for you. Like the old saying goes, “Measure once, cut twice.” You need to take into account the amount of post that will be in your frame, as well as the amount exposed, plus the travel of your dropper. Measuring the insertion depth is just the start of the equation. Fox Shox offers a fitment guide on its website that will help you buy a post that will fit right the first time around.

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