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Road cycling routes
United Kingdom
Wales
South Wales
Rhondda Cynon Taf

Cymmer

The best road cycling routes around Cymmer

4.2

(46)

3,254

riders

93

rides

Road cycling around Cymmer offers a diverse landscape characterized by valley floors and hill summits within the Afan Valley of South Wales. The region features mostly paved surfaces suitable for road bikes, with routes that include significant elevation gains. This area blends natural beauty with industrial heritage, providing varied terrain for cyclists. Key features include commanding viewpoints and the scenic riverine landscapes formed by the confluence of rivers.

Best road cycling routes around Cymmer

  • The most popular road cycling route…

Last updated: July 11, 2026

62

riders

#1.

Rhigos Mountain Viewpoint – Rhigos Climb Viewpoint loop from Dinas Rhondda

56.4km

02:58

1,040m

1,040m

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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Hard

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate
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Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate
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Tips from the Community

Mark Jacobs
July 9, 2025, Porthkerry Viaduct

Magnificent structure and a great photo opportunity and one of many within the park.

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Climbing the Rhigos northwards from Treherbert is a classic, sustained South Wales Valleys ascent featuring scenic hairpin bends and panoramic views. Settle into an endurance rhythm for the long climb averaging around 5%, but be prepared for steeper ramps hitting 10-15%, particularly on the iconic hairpin section midway up. Experience the dramatic scenery as you rise above the Rhondda valley onto the open moorland. The road surface is generally good following major repairs completed in late 2024, allowing you to focus on conquering this rewarding climb.

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Climbing the Bwlch Mountain southwards from Treorchy (A4061) is a classic South Wales Valleys experience, offering a long, steady ascent. The road winds up from the Rhondda valley onto open moorland where the main challenge often becomes the significant exposure to wind. Enjoy the sweeping panoramic views from the top of this popular and rewarding climb.

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Grace Mulligan
November 23, 2024, Radyr Weir

The weir spans the River Taff, which flows directly through the heart of South Wales. It's a nice place to stop and refuel with picnic benches and a peaceful atmosphere.

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An epic road bike climb that not very difficult & has stunning views as you ascend

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Starting in the outskirts of Rhigos, this climb takes you past former mining areas and up to the top of Hirwaun Common. The climb passes the fomer Tower Colliery – which used to be the oldest working deep coal mine in the UK but closed in 2008. The climb gives both a feeling of industrial heritage but later the sweeping views of the Hirwaun Common. The first few km are fairly straight but near the summit, there are two switchback hairpins which add an alpine feel to this long-steady climb.

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Very good café if the weather is good.

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William Cook
September 29, 2023, Porthkerry Viaduct

Porthkerry Viaduct in South Wales is a picturesque, 12 arched bridge, nestled in the scenic Porthkerry Park, and built in the late 19th Century. It offers stunning views of the surrounding countryside and is a popular spot for walks and picnics. This landmark is both an engineering marvel and a gateway to South Wales' natural beauty.

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Frequently Asked Questions

How many road cycling routes are available around Cymmer?

There are over 90 road cycling routes around Cymmer, offering a wide range of options for different skill levels. You'll find 15 easy routes, 63 moderate routes, and 18 difficult routes to explore.

What kind of terrain can I expect on road cycling routes in Cymmer?

Road cycling routes in Cymmer feature mostly paved surfaces, making them ideal for road bikes. The landscape is diverse, characterized by valley floors and challenging hill summits within the Afan Valley. You'll encounter varied terrain, from scenic riverine landscapes to significant elevation gains.

Are there challenging road cycling routes with significant elevation gain in Cymmer?

Yes, Cymmer offers routes with substantial elevation gains for cyclists seeking a challenge. For instance, the Rhigos Climb Viewpoint – Rhigos Climb from Treherbert loop from Dinas Rhondda is a difficult 35.0-mile route with over 1000 meters of ascent, appealing to experienced riders.

What are some scenic viewpoints I can reach by road bike in Cymmer?

The region boasts commanding viewpoints that offer panoramic vistas. A notable one is Garth Summit, a UK-listed Marilyn just outside Cardiff, known for its rewarding views after a challenging climb. Other viewpoints include Giant's Bite and Mynydd Meio Summit.

Are there any historical or natural landmarks to see along the road cycling routes?

Yes, Cymmer blends natural beauty with industrial heritage. You can explore areas like the Afan Valley, known for its diverse landscapes. Historically, the Taff Trail Tramroad Section offers a glimpse into the region's past. You might also encounter natural monuments like Cefn Eglwysilan Trig Point or The Rocking Stone and the Gorsedd Circle.

Can I find family-friendly road cycling options in Cymmer?

While many routes feature significant climbs, there are 15 easy road cycling routes available around Cymmer. These routes are generally shorter and have less elevation, making them more suitable for families or those looking for a relaxed ride. The Taff Trail, though having some unpaved sections, also offers easier road alternatives, such as the route from Treorchy/Llwynypia to Pontypridd.

Are there circular road cycling routes available around Cymmer?

Most of the road cycling routes around Cymmer are designed as loops, allowing you to start and finish at the same point. For example, the Bryn Du Climb from Aberdare – Bradley's Coffee Shop loop from Dinas Rhondda is a popular moderate circular route covering 30.6 miles.

What do other cyclists say about road cycling in Cymmer?

The road cycling routes in Cymmer are highly rated by the komoot community, with an average score of 4.1 stars from over 30 reviews. Cyclists often praise the varied terrain, the blend of natural beauty and industrial heritage, and the challenging ascents that offer rewarding views.

How accessible are the road cycling routes in Cymmer by public transport?

Cymmer is situated in the Afan Valley, and while direct public transport access to all trailheads might vary, the region is connected. The Taff Trail, which has road-suitable sections, can be accessed from towns like Treorchy/Llwynypia, offering an easy route towards Pontypridd and Cardiff, which are well-served by public transport.

Are there places to stop for refreshments like cafes or pubs along the routes?

While specific cafes and pubs directly on every route are not detailed, the region's towns and villages, such as Cymmer itself and nearby Porth, offer amenities where cyclists can find refreshments. Many routes, like the Bryn Du Climb from Aberdare – Bradley's Coffee Shop loop from Dinas Rhondda, are named with coffee shops in mind, suggesting popular stops.

What are the best times of year to go road cycling in Cymmer?

The best times for road cycling in Cymmer are generally during the spring, summer, and early autumn months when the weather is milder and more predictable. These seasons offer pleasant temperatures and less chance of adverse conditions, allowing you to fully enjoy the valley floors and hill summits.

Are there any longer road cycling routes for endurance training in Cymmer?

Yes, for those looking for longer rides, Cymmer offers several options. The Radyr Weir – Porthkerry Viaduct loop from Porth is a moderate 58.2-mile (93.7 km) route, providing a substantial distance for endurance training with over 800 meters of elevation gain.

Can I find routes that explore the Rhondda River valley?

Absolutely. The Rhondda River Rapids – Smooth Climb to Pentyrch loop from Tonypandy is a popular 27.2-mile route that leads directly through the scenic Rhondda River valley, offering beautiful views and a moderate challenge.

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