I've heard several people chant the mantra of "45 on rollers = 60 on road" but I need to know why.
Is it because you keep spinning without stopping? If this is the case, would you also count 45 minutes of fixed riding as 60 minutes of riding?
Is it because the lack of resistance makes you spin more? If this is the case, would you still count those 45 as 60 if you had resistance on your rollers?
Or is it some other reason?
Basically, before I'm willing to give myself credit for 15 min I didn't actually ride, I need to know how I earned it. I ride fixed 90% of the time on street anyway, so if it's because of the spinning thing, it's a cop out to me.