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Routes
Road cycling routes
United Kingdom
Wales
South Wales
Carmarthenshire

Llandeilo

The best road cycling routes around Llandeilo

4.3

(13)

2,023

riders

19

rides

Road cycling routes around Llandeilo are defined by the verdant Tywi Valley, offering a mix of rolling valleys and dramatic hill-top castles. The terrain features consistent slopes, undulating rural roads, and significant climbs, including sections of the Black Mountain. This region provides diverse natural features, from ancient woodlands to picturesque reservoir surroundings, making it suitable for varied road cycling experiences.

Best road cycling routes around Llandeilo

  • The most popular road cycling route is Black Mountain climb loop from Llandeilo,…

Last updated: May 10, 2026

5.0

(1)

30

riders

#1.

Black Mountain climb loop from Llandeilo

42.9km

02:34

900m

900m

Cycle the Black Mountain climb loop from Llandeilo, a moderate 26.7-mile route with 2944 feet of elevation gain in Bannau Brycheiniog Nation

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Moderate

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

Hard
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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. Some segments of this route may be unpaved and difficult to ride.

Moderate

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

Moderate
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Popular around Llandeilo

Celtic Way — An epic pilgrimage through prehistory and wild beauty

Cycling around Llandeilo

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Celtic Way — An epic pilgrimage through prehistory and wild beauty

Hiking Collection by

Dan Hobson

Tips from the Community

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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Near Tumble the trail is closed due to a landslide, so be aware you cannot make it all the way through to crosshands.

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Cycle Route 47 is closed between Tumble and Pontyberem due to a landslide

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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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Short Steep climb on bike

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Geraint
February 28, 2025, Llandeilo

lovely market town

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Scotty C
December 8, 2024, North Dock Kiosk

Little cafe offering drinks, cakes and ice creams

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Frequently Asked Questions

How many road cycling routes are available around Llandeilo?

There are 19 road cycling routes documented around Llandeilo on komoot, offering a variety of experiences for different skill levels.

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

Llandeilo's road cycling routes feature a diverse terrain, from consistent slopes and undulating rural roads in the verdant Tywi Valley to significant climbs. Notably, routes like the Black Mountain climb loop from Llandeilo include challenging ascents, with the Black Mountain itself presenting a 7km climb averaging 5% gradient.

Are there any easy or family-friendly road cycling routes in Llandeilo?

While many routes are moderate, there is at least one easy road cycling route available. The region is also developing the Tywi Valley Path, a traffic-free route that will be ideal for families and beginners once fully completed, offering a safe and scenic ride along the River Tywi.

What historical landmarks or natural features can I see along the cycling routes?

Road cycling routes around Llandeilo offer access to numerous historical and natural attractions. You can explore sites like Carreg Cennen Castle, perched dramatically on a hilltop, or the ruins of Dinefwr Castle within its ancient parkland. Other notable features include the National Botanic Garden of Wales and the picturesque Cwm Lliedi Reservoir.

Are the roads generally quiet for cycling in Llandeilo?

Yes, Carmarthenshire, where Llandeilo is located, is well-known for its quiet, low-traffic rural roads. This provides a more enjoyable and safer cycling experience, allowing you to fully appreciate the scenic landscapes.

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

The region offers beautiful scenery throughout the year, but spring and summer generally provide the most pleasant conditions for road cycling, with milder weather and lush landscapes. Always check local weather forecasts, especially when planning rides involving higher elevations like the Black Mountain.

Are there challenging climbs for experienced road cyclists?

Absolutely. Llandeilo is an excellent destination for experienced cyclists seeking a challenge. The Black Mountain, for instance, offers a significant climb with gradients peaking at 10%, providing a rewarding test of endurance and breathtaking views. Routes like the Black Mountain climb loop from Llandeilo are specifically designed for this.

Can I find circular road cycling routes around Llandeilo?

Yes, many of the road cycling routes around Llandeilo are designed as loops, allowing you to start and finish in the same location. An example is the Llandeilo – Llandeilo Town Centre loop from Llandeilo, which covers varied rural roads.

What do other road cyclists say about the routes in Llandeilo?

The road cycling routes in Llandeilo are highly regarded by the komoot community, with an average score of 5.0 stars from over 2 reviews. Cyclists often praise the varied terrain, quiet roads, and the stunning natural beauty and historical landmarks encountered along the way.

Are there any long-distance road cycling options in the area?

Yes, for those looking for longer rides, routes like the 2019 OVO Energy Women's Tour - Carmarthenshire loop offer extensive distances, covering over 100 km and providing a challenging long-distance experience across the wider Carmarthenshire region.

Where can I find places to eat or drink along the routes?

Llandeilo and the surrounding charming market towns offer welcoming cafes and pubs that are perfect for rest stops during your ride. While specific establishments aren't listed in the route details, the supportive environment for cyclists means you'll find options to refuel.

Is there public transport access to Llandeilo for cyclists?

Llandeilo is a market town in the Tywi Valley, and while specific public transport details for cyclists aren't provided in the route data, it's generally accessible by train and bus services. For detailed information on public transport options that accommodate bicycles, it's best to check local transport provider websites.

Are there any specific routes that pass through ancient woodlands?

Yes, the region is rich in natural features including ancient woodlands. Routes like the Llandeilo – Coed Tregib Woodland loop from Llandeilo will take you through such picturesque settings, offering a serene cycling experience amidst nature.

Most popular routes around Llandeilo

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