Agreed. A few years back I was running up a steepish track near Rylstone in the Dales. I passed some mountain bikers struggling up the same path who looked at me in amazement. I've also done the same on Mastilles Lane near Kilnsey Cragg. It's not that I was a particularly good runner - I was only ever average at best. It's just that taking a big heavy mountain bike up a rough off-road hill is not easy.
Sorry DT, back to politics soon.