If you're looking to change the travel either up or down in your 2021 Fox Float 36 fork, then just snag an air shaft and swap it out in your fork! The new 2021 Air Shaft boasts a larger negative air volume chamber.
Fox Air Shafts come with brand new seals pre-installed.
We have a super in-depth video on Fox lowers service below which shows step-by-step how to pull your fork apart and swap out your air shaft. When you click to view the video it will start at the air shaft removal/swap procedure. Start at the beginning to watch the entire procedure!