How many watts is decent cycling power/fitness ?

Above that and it’s skills that will be limiting not power. On and off road.

There’s skill involved in road riding?

There’s skill involved in road riding?

Yep. I used to have a similar w/kg as TiRed’s ‘enough to get to Cat 2’ and couldn’t make it past Cat 4. Because I was not very skilful at racing.

Indeed. Try throwing your bike around the bends rubbing elbows with your team mates. Half a wheel from the rider in front. At 30 mph. Great fun. Racecraft can save you a lot of effort. Some of the pros have rolling rest days and will average about the same as a second cat rider over a whole stage. Until it goes uphill 🙂