Cefn Onneu from Llangynidr

Cefn Onneu can be cycled from 3 sides. Cefn Onneu from Llangynidr is the most popular side, but the summit can also be reached via Cefn Onneu from Gamlydan & Cefn Onneu from Crickhowell.

Cefn Onneu from Llangynidr is a challenging ascent. For this type of climbing, we recommend mountain gearing, specifically a compact system. This means a small front chainring of 34 teeth, combined with a rear cassette where, depending on your level, strength, and experience, you choose a sprocket with 30, 32, or even 34 teeth. Remember that a smooth cadence is always more efficient!

Cefn Onneu from Llangynidr is a serious climb and falls into the 2nd category. With a good basic fitness level, even without much cycling experience, you can complete this climb just fine. However, a bike with climbing gears is a must. Without experience or training, it will be really tough – but that’s part of the challenge!

Cefn Onneu from Llangynidr is 3.6 mi long.

The average gradient of Cefn Onneu from Llangynidr is 7.2%.

Cefn Onneu from Llangynidr has a steepest segment with an average gradient of 11.5%.

The summit of Cefn Onneu from Llangynidr is at 1703 ft.

At a slow pace of 5 mph, it takes about 00:42:54 to climb Cefn Onneu from Llangynidr. At 7 mph the time is 00:30:22, and at 9 mph 00:23:40. For the fastest cyclists, 00:17:47 is an achievable time.

Cefn Onneu from Llangynidr is located in the region Powys in Wales.