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United Kingdom
Wales
South Wales
Carmarthenshire

Myddfai

The best road cycling routes around Myddfai

4.8

(18)

835

riders

65

rides

Road cycling around Myddfai offers routes through the varied terrain of the Bannau Brycheiniog (Brecon Beacons) National Park. The region is characterized by challenging mountain passes, such as the Black Mountain and Devil's Elbow, alongside scenic river valleys like the Towy and Cothi. Cyclists encounter significant elevation changes, reservoirs, and open landscapes, providing diverse road cycling experiences.

Best road cycling routes around Myddfai

  • The most popular road cycling route is Black Mountain, Devil's Elbow & Usk Reservoir loop from Llandovery

Last updated: July 6, 2026

5.0

(2)

30

riders

#1.

Black Mountain, Devil's Elbow & Usk Reservoir loop from Llandovery

115km

06:00

2,000m

2,000m

Embark on a challenging racebike journey through the Bannau Brycheiniog National Park with the Black Mountain, Devil's Elbow & Usk Reservoir loop. This difficult 71.7-mile (115.4 km) route will test…

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Hard

5.0

(2)

34

riders

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

Moderate
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3

riders

This difficult 57.6-mile road cycling loop from Llandovery takes you through the scenic Towy & Cothi Valleys with 4310 feet of elevation gai

Hard

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

Hard

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

Hard
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Tips from the Community

Paul Key
June 16, 2025, Glynneath Hill Climb

What an absolute gem of a climb. One of my favourites !!!

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Some steep climbing but the scenery is sublime.

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Great climb, long but not too steep. Views are absolutely amazing !!!

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Confronting the Devil's Staircase northbound from near Llyn Brianne reservoir is tackling one of Wales's most infamous climbs, famed for its savage steepness and remote beauty. Prepare for an immediate, brutal ascent as the narrow single-track road rears up, averaging a punishing 10-13% but hitting steep ramps well over 20%, reportedly reaching 25-30%. Feel the wild exposure of the Cambrian Mountains, with stunningly remote views as your reward for conquering this truly devilish challenge.

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Unavoidable !

Translated by Google

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It was a truly stunning spot to take in the scenery from this elevated panoramic viewpoint. Highly recommended.

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Andy Bryant
February 5, 2025, Abergwesyn Pass

It's a truly stunning ride valley mountain road and not to be missed if you are in the area.

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Andy Bryant
February 4, 2025, Llyn Brianne Dam

A short climb up from the road brings you to the Dam and carpark, there is no access over the Dam itself. But you do get a good view over the spillway and valley below.

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Frequently Asked Questions

What is the general difficulty level of road cycling routes around Myddfai?

Road cycling around Myddfai, situated within the Bannau Brycheiniog (Brecon Beacons) National Park, offers a diverse range of routes. While many routes feature challenging mountain passes and significant elevation changes, there are also options for moderate valley rides. Out of 68 available routes, 11 are considered easy, 38 are moderate, and 19 are difficult.

Are there road cycling routes suitable for beginners in Myddfai?

Yes, Myddfai offers several road cycling routes suitable for beginners. These routes typically follow river valleys, providing a mix of rolling hills rather than steep climbs. There are 11 easy routes available, perfect for those new to road cycling in the area.

What kind of elevation gain can I expect on road cycling routes around Myddfai?

The Myddfai region is known for its varied terrain, including challenging mountain passes like the Black Mountain and Devil's Elbow. Cyclists can expect significant elevation changes, with some difficult routes featuring over 2000 meters of ascent, such as the Black Mountain, Devil's Elbow & Usk Reservoir loop from Llandovery. Moderate routes, like the Llandovery to River Cothi Valley loop, typically have around 500 meters of elevation gain.

What are the typical lengths of road cycling routes in the Myddfai area?

Route lengths vary significantly to accommodate different preferences and fitness levels. You can find shorter routes around 45 km, such as the Llandovery to River Cothi Valley loop, which takes about 2 hours 20 minutes. Longer, more challenging routes can extend to over 140 km, like the Brecon, Merthyr Tydfil & Black Mountain loop from Llandovery, which may take over 7 hours to complete.

Are there any circular road cycling routes available from Myddfai?

Yes, many of the road cycling routes around Myddfai are designed as loops, offering convenient starting and ending points. Examples include the Black Mountain, Devil's Elbow & Usk Reservoir loop from Llandovery and the Towy & Cothi Valley loop from Llandovery, allowing you to return to your starting point without retracing your path.

What do other road cyclists enjoy most about road cycling in Myddfai?

The road cycling routes around Myddfai are highly rated by the komoot community, with an average score of 4.7 stars from over 20 reviews. Cyclists often praise the challenging mountain passes, the panoramic views across the Black Mountain and Usk Reservoir, and the scenic river valleys like the Towy and Cothi. The diverse terrain offers something for every ability level.

What are some scenic viewpoints or natural attractions along the road cycling routes?

The region offers stunning natural beauty. Along your rides, you might encounter views of significant peaks such as Fan Brycheiniog summit or Picws Du summit with its view of Llyn y Fan Fach. The routes also pass by beautiful natural monuments like Llyn y Fan Fach and Llyn y Fan Fawr, offering picturesque stops.

Are there any routes that pass by reservoirs?

Yes, several routes incorporate the region's reservoirs into their scenic paths. For instance, the Black Mountain, Devil's Elbow & Usk Reservoir loop from Llandovery specifically features the Usk Reservoir, providing beautiful waterside views during your ride.

What is the best time of year for road cycling in Myddfai?

The varied terrain of Myddfai, with its mountain passes and open landscapes, is best enjoyed during the warmer and drier months, typically from late spring to early autumn. This period offers more predictable weather conditions and clearer views, making the challenging climbs and descents more enjoyable. Always check local weather forecasts before heading out.

Where can I find parking for road cycling routes in Myddfai?

Many road cycling routes in the Myddfai area start from towns like Llandovery, which typically offer public parking facilities. For specific routes, it's advisable to check the route details on komoot for recommended starting points and any associated parking information. Given the rural nature of the area, roadside parking might also be an option in some locations, but always ensure it's safe and permissible.

Are there any road cycling routes that explore the Towy and Cothi River Valleys?

Absolutely. The Towy and Cothi River Valleys are prominent features of the Myddfai road cycling landscape, offering scenic rides through rolling hills and picturesque countryside. The Towy & Cothi Valley loop from Llandovery is a great example, allowing you to experience the beauty of both valleys.

Can I find routes that take me through the Bannau Brycheiniog (Brecon Beacons) National Park?

Yes, Myddfai is located within the Bannau Brycheiniog (Brecon Beacons) National Park, meaning many routes will take you through its stunning landscapes. The Brecon, Merthyr Tydfil & Black Mountain loop from Llandovery is a prime example of a route that immerses you in the heart of the National Park, offering expansive views and challenging terrain.

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