87% ftp ride for 90 min is not a "recovery ride"

any cyclist can ride fine the next day after an hour at 100%, hell, I have done back to back 40k TT race days and had no problem riding the next day

and to the person that said you cant walk the day after, this only applies to newbies to the 40k effort. once you work into it, it isn't much to get over. we have folks that will do 2-40k races in a single day, granted the second one is not as fast, but it is way more difficult than walking

I am not endorsing the idea, however