>>1104462Your wheels will lose you like 20W, but aero will make you lose 50W+ even at moderate speeds.
Think about it, your losses don't increase as you increase in speed- apart from air resistance. Your tires give you the same losses at 2mph as they do at 30mph, simply due to the rolling resistance. Same with drivetrain. The fact that you can go to 2 mph to 20mph is you gradually increasing your losses to aerodynamics until you reach max speed, which is when your power output matches your losses, IE; aero is where 90% of your power is going.
On climbs this changes, since the gradient makes up a large part of your power loss, as you're pushing upwards , which requires much more power than pushing forwards. So you lose power to upwards motion, pushing against gravity. And this takes power away from your forward motion.
On flats, aero is almost everything. On climbs, aero is like 70% of everything, weight being 30%. Depends on the gradient though, steeper climbs make weight matter more.
Aero isn't everything, it's only where 90% of your power goes.
