In reply to Rigid Raider:
You don’t need to be ‘fitter for the road’, quite the opposite. It’s easy to go for a cruise along flat roads, take in the occasional hill, the occasional pub and the hours and miles just fly by. Unless your idea of mountain biking is canal towpaths and old railway lines (and nothing wrong with that) then you rarely get an easy mile. The hills take longer, and usually require more intense effort. And the descents are rarely free from effort (unless you just ride down fireroads).
Now of course you can make either activity as hard as you want, and likewise there is no reason why mountain bike rides shouldn’t start from your front door - most of mine do. Just because some people ride to a trail centre, ride for a hour and spend the rest of the day in the cafe, it doesn’t mean that’s how it has to be.
I will acknowledge that i’m generally higher up the leader boards on Strava when it’s a MTB segment, but I put that down to the fact that all roadies take drugs.....
Post edited at 11:20