I would just like to ride for 20 mins at 5w / kg.
In my ride today, just before I finished, I was starting the KOM climb when two riders, Chinese and Greek, flew passed me both going 5.5 to 7 W/ kg. The Greek riders had already done 66miles compared to the Chinese rider with 3 miles. I watched for about a minute or so whilst they both raced , overtaking each other as they climbed at a rapid rate.