Can anyone chime in or share any info they have on winter outdoor training and effects on performance due to air temps. I live in Maine and I recently mounted a power meter o my fatbike so I can incorporate outdoor training workouts into my TR plan. I have not tried a true outdoor FTP test outdoors yet, but my lungs feel pretty good down to about 20F with little loss of power if any.
Are there any upsides or downsides to pushing hard workouts outside when the air temps are at or below freezing? I am guessing there are plenty of riders on here who brave the cold from time to time and might be able to share there experience on outdoor cold weather intervals with power.