Joined: Jul 2002
Posts: 40,863
Likes: 3,116
From: Sacramento, California, USA
Bikes: Specialized Tarmac, Canyon Exceed, Specialized Transition, Ellsworth Roots, Ridley Excalibur
A long time ago, someone gathered maxHR from a bunch of untrained individuals, graphed it against age and tried to fit a line. They came up with 220-age, but it’s a terrible predictor of an individual’s maxHR, so ignore it. Your max is your max. If you’ve seen 175bpm on your Apple watch, I’d say your maxHR is at least 175.