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Road cycling routes

Rhondda Cynon Taf

Radyr Weir – Porthkerry Viaduct loop from Porth

Road cycling routes

Rhondda Cynon Taf

Radyr Weir – Porthkerry Viaduct loop from Porth

Moderate

3.0

(1)

19

riders

Radyr Weir – Porthkerry Viaduct loop from Porth

04:23

95.0km

850m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: August 21, 2026

Waypoints

A

Start point

Train Station

1

8.47 km

Taff Trail: Nantgarw to Pontypridd

Highlight (Segment) • Forest

The Taff Trail has some fantastic gravel stretches.

The section from the top of Bwlch Mountain is probably best ridden on a full suspension MTB, but the road down is …

Tip by

13.0 km

Coed Caedyrys

Forest

19.3 km

River Taff

Lake

4

19.7 km

Radyr Weir

Highlight • Structure

A pretty weir of the River Taff, the Radyr Weir runs today as a hydro power scheme and a focal point of Radyr town. Many wild salmon and sea trout …

Tip by

5

42.1 km

Porthkerry Viaduct

Highlight • Historical Site

Porthkerry Viaduct has 16 arches and was eventually re-opened in 1900 after a faltering start when numerous supporting piers settled and had to be underpinned and reconstructed. It's been pretty solid since and now it's a Grade II listed building.

Tip by

6

55.9 km

Café Velo

Highlight • Cafe

Great little café, very bike friendly. There's a load of bike locks hanging on the wall just inside the door that the owner provides to allow you to secure your …

Tip by

7

82.7 km

Scenic Climb With Panoramic View

Highlight • Climb

B

95.0 km

End point

Train Station

Way Types & Surfaces

Way Types

43.6 km

31.5 km

15.4 km

4.29 km

226 m

< 100 m

Surfaces

89.4 km

4.74 km

878 m

< 100 m

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Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (180 m)

Lowest point (0 m)

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Weather

Powered by Foreca

Today

Monday 12 October

16°C

8°C

83 %

Additional weather tips

Max wind speed: 29.0 km/h

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