Not an overly long or pretty climb - or indeed a mountain - Caerphilly Mountain has nontheless assumed icon status among British cyclists, both professional and amateur. As for why, you need only look at the Tour of Britain, where it became a signature climb in 2011, and for three successive seasons it featured in stage finales. The Strava KOM is dominated by riders who draw a salary for doing so. The climb is also the last major challenge for the riders of Wales’s biggest sportive, the closedroad Velothon, before the fast run-in to Cardiff, and if you’ve gone full gas up until this point the Mountain’s nine per cent average over 0.8 miles will hit you like a sledgehammer slug to the guts. And like all the nastiest climbs, Caerphilly saves its worst until last.