Power zones preset

Hi there,

I noticed Joe Friel Bike preset zones has IMO bad sweet spot zone.
Here A Quick Guide to Setting Zones - Joe Friel, Joe doesnt wrote about sweet spot zone.

I red almost every book by Joe, in workouts examples where is description of sweet spot training is wrote that this kind of intervals should be done with 0,88-0,93 IF, so we can conclude sweet spot zone is 88-93% of FTP.

Corect me, if I wrong.

Unfortunately I can’t remember where I got the sweet spot zone numbers from. But you can edit them to whatever you like. I did a quick Google and found many definitions for “sweet spot ftp percentage”.