Cycling intensity levels are commonly organized into Power Zones, with each zone matching a percentage of your FTP. Balancing time in power zones is crucial to proper training.

Cycling intensity levels are commonly organized into Power Zones, with each zone matching a percentage of your FTP. Balancing time in power zones is crucial to proper training.
Power is the only objective metric you can use to train with. Other metrics — distance, heart rate, RPE — are subjective. This isn’t newfound knowledge. Most cyclists know this, but there are far fewer cyclists who have spent the time to really get it. So why is having more than a baseline understanding of…