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Road cycling routes
United Kingdom
Wales
South Wales
Carmarthenshire

Llansadwrn

The best road cycling routes around Llansadwrn

4.8

(18)

1,303

riders

75

rides

Road cycling routes around Llansadwrn traverse a landscape characterized by the Towy Valley, featuring towering, steep sides and quiet roads. The region includes the Upper Towy Valley, known for its scenic vistas and diverse terrain. Cyclists encounter a mix of challenging climbs and more moderate sections, particularly around areas like Llyn Brianne, which offers notable views. The area's topography includes hills and glacial lakes, providing varied elevation changes for road cyclists.

Best road cycling routes around Llansadwrn

  • The most popular…

Last updated: July 6, 2026

1

riders

#1.

Cothi Valley loop from Halfway to Brechfa

43.1km

02:20

660m

660m

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

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Moderate

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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Cycling around Llansadwrn

Tips from the Community

grafj
July 10, 2026, Black Mountain Climb from Brynaman

Great road for cycling up/down. The surface has degraded a bit over recent years, but still a great climb/descent.

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grafj
July 10, 2026, Herbert's Quarry

Interesting ruins of a time gone by, with spectacular views over the Carmarthen countryside

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David Howells
April 22, 2026, Llandeilo

Nestled in the heart of Carmarthenshire, you will find the charming market town of Llandeilo. This is a historic town full of history, beauty and culture. Here you will find the historic bridge that spans the River Tywi, charming colourful houses, ancient Dinefwr Castle and stately Dinefwr Park. The whole area is a little bit of a Welsh paradise, offering an authentic and unforgettable Welsh experience.

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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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Lots of lovely cafes and pubs

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Cwm R MTB trail is completely blocked at top end due to hundreds of wind fallen trees this winter. Please consider before as you can not navigate loop.

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The Black Mountain Category 3 Climb from Brynaman is a 5.5km climb with a total ascent of 312m, topping out at 495m. The average gradient is 5.8% with the steepest 100m section reaching 8.4%. Grind out the best gear you can on the consistent slope and gradually as you rise above the valley towards the plateau you are rewarded with some of the best scenery in Wales. You've earnt the descent.

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Frequently Asked Questions

How many road cycling routes are available around Llansadwrn?

There are over 75 road cycling routes around Llansadwrn, offering a wide range of options for different skill levels and preferences. These routes are highly rated by the komoot community, with an average score of 4.7 stars.

What is the general terrain like for road cycling in Llansadwrn?

The terrain around Llansadwrn is diverse, characterized by the scenic Towy Valley with its towering, steep sides and quiet roads. You'll find a mix of challenging climbs and more moderate sections, particularly around areas like Llyn Brianne, which is known for its spectacular views. The region's topography includes hills and glacial lakes, providing varied elevation changes.

Are there road cycling routes suitable for beginners or those looking for an easier ride?

Yes, there are 12 easy road cycling routes around Llansadwrn. While the region is known for its varied terrain, you can find paths that offer a more relaxed experience. For example, parts of the Towy Valley offer quieter roads and scenic vistas suitable for a leisurely pace.

Are there challenging road cycling routes in the Llansadwrn area?

Absolutely. The Llansadwrn area offers 21 difficult road cycling routes for those seeking a challenge. The route around Llyn Brianne is particularly notable for its challenging climbs and incredible views. You can also explore routes like the Trecastle Motte – Tirabad Military Road loop from Llangadog, which leads through areas with significant elevation gain.

What are some scenic road cycling routes in Llansadwrn?

Many routes in Llansadwrn offer stunning scenery. The area around Llyn Brianne is described as one of the most spectacular roads to ride globally, with incredible views along its perimeter and through the Upper Towy Valley. The Amman Valley Cycleway – Llandeilo loop from Llanwrda also provides extensive views through the Amman Valley and around Llandeilo.

What can I see along the road cycling routes in Llansadwrn?

Road cycling routes in Llansadwrn often pass by or near various points of interest. You might encounter historical sites like Carreg Cennen Castle or Llandovery Castle Ruins. The region also features natural beauty such as glacial lakes near Talley Abbey and the dramatic landscapes of the Towy Valley.

Are there any circular road cycling routes available?

Yes, many road cycling routes in Llansadwrn are circular, allowing you to start and end at the same point. An example is the Cothi Valley loop from Halfway to Brechfa, a moderate 26.8-mile trail that explores the Cothi Valley.

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

Wales, including the Llansadwrn area, is generally celebrated as a prime destination for road cycling, offering options from leisurely paces to demanding inclines. While specific seasonal conditions vary, spring and summer typically offer the most favorable weather for exploring the diverse landscapes.

Are there places to stop for refreshments or explore nearby towns during a ride?

Yes, many routes will take you through or near charming settlements where you can find cafes or pubs. For instance, the Llandeilo Town Centre – Llandeilo loop from Llangadog passes through Llandeilo, a notable settlement where you can pause and explore.

What do other cyclists say about road cycling in Llansadwrn?

The road cycling routes in Llansadwrn are highly rated by the komoot community, with an average score of 4.7 stars from over 19 reviews. Cyclists often praise the varied terrain, the stunning views, and the opportunity to experience the landscape's flow, from quiet valley roads to challenging climbs.

Can I find less crowded road cycling routes in Llansadwrn?

The Towy Valley and Upper Towy Valley are known for their quiet roads, offering a more serene cycling experience away from heavy traffic. Exploring some of the less-trafficked local roads can provide a peaceful ride through scenic vistas.

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