Webjun 10, 2021 · how to ace your ftp test. Power zone instructors and members share their secrets for nailing this notoriously tough fitness test. By peloton•updated june 10, 2021. If there’s a peloton class more feared than. Webthis number will allow you to calculate your functional threshold power (ftp), which is the highest output you can steadily maintain for approximately one hour.