Pontrhydyfen Viaduct – Rhigos Climb Viewpoint loop from Ammanford
Pontrhydyfen Viaduct – Rhigos Climb Viewpoint loop from Ammanford
56
riders
Pontrhydyfen Viaduct – Rhigos Climb Viewpoint loop from Ammanford
05:50
117km
1,640m
Road cycling
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.
Last updated: April 19, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Train Station
Get Directions
31.4 km
Sardis Hill
Highlight (Segment) • Climb
Continuing to rise harshly past a couple of houses it’s not too long before you reach the gentle middle section. Take the chance to catch your breath here as before you know it the second ramp arrives to take you to the top.
Longer than the first hard stretch but not quite as steep it begins abruptly then fades as you approach the summit. Passing over a small bridge, the trees either side recede and the houses of Cimla begin before you arrive at the top at the small crossroads.
Tip by
34.1 km
Pontrhydyfen Viaduct
Highlight • Viewpoint
Tip by
43.6 km
Bwlch Mountain Climb from Treorchy
Highlight (Segment) • Viewpoint
Tip by
52.7 km
View of Bwlch from Bwlch Summit
Highlight • Summit
Tip by
52.7 km
Bwlch Mountain Climb from Treorchy
Highlight (Segment) • Viewpoint
Tip by
66.1 km
View of Hirwaun Common from Rhigos Climb
Highlight • Viewpoint
Tip by
67.7 km
Rhigos Climb Viewpoint
Highlight (Segment) • Viewpoint
It’s a solid climb although never too steep which starts in a dead straight line before bending left past the old Tower Colliery. The gradient increases as you enter the second long straight, after which the road twists right into a conifer plantation.
Ahead you’ll see the first of the two giant bends and if you look left you’ll spy the road climbing above you. As you head into a smooth, tight bend and swing back round, the slope increases slightly and the views out over the valley open up.
Easing slightly before the next turn but climbing steeper out of it, the pitch now ramps hard up the side of the mountain with a barrier on the left and a sheer rock face to the right. Sweeping round you now just have to push yourself on to finish over the brow past the car park on your right.
Tip by
117 km
End point
Train Station
Way Types & Surfaces
Way Types
81.3 km
19.4 km
13.8 km
2.14 km
< 100 m
< 100 m
Surfaces
104 km
12.2 km
393 m
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Elevation
Highest point (530 m)
Lowest point (10 m)
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Weather
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Monday 1 June
18°C
11°C
68 %
Additional weather tips
Max wind speed: 21.0 km/h
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