- Distance: 4.06km ; Elevation Gain: 347m
- Average Gradient 9%
At over 4km in length and with a long steady 10 percent gradient, The Tumble is one of the most famous and highly anticipated climbs in South Wales.
Once part of the Tour de Britain route in 2014, The Tumble starts its infamous climb in Govilion and later summits at the Keepers Pond (512m). The gradient is gentle to begin with, becoming steeper as riders meander through the woods. Crossing the cattle grid, riders will reach an opening to a treeless moorland where fantastic views of the Brecon Beacons can be relished. Treeless moorland where fantastic views of the twin peaks of the Brecon Beacons can be relished. By the time riders reach the summit, they will no doubt understand why it’s called “The Iron Mountain”.