Should I do my endurance rides harder in zone 3 or stick to zone 2 - Is the age-old adage that Zone 2 is the way to go for endurance still relevant, or is it just an excuse for riders who arent willing to push themselves? Ive seen many riders swear by the benefits of zone 2 for endurance, citing increased fat burning and reduced risk of burnout, but Ive also seen riders who consistently ride in zone 3 and seem to be getting just as good, if not better, results. Is zone 3 the new zone 2, or are these riders just lucky? What are the actual benefits and drawbacks of riding in each zone, and how do you determine which one is right for you? Should I be aiming to spend most of my ride time in zone 2, or should I be pushing myself harder and spending more time in zone 3? Are there any coaches or experienced riders out there who can shed some light on this and provide some actual data to back up their claims?