Mashing vs spinning.
Okay probably this was answered but I might as well ask since you guys bring up threads like Shimano vs Campy all the time.
Anyways.
Here is my question(it's not which is better).
When you are mashing, are you mostly using your heart to go up the hills and when you are spinning are you using your legs more?
It would seem that on spinning you use your legs much more than your heart and mashing uses your heart alot more.
Right?