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.
Last updated: May 10, 2026
5.0
(1)
30
riders
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
17
riders
104km
05:12
1,370m
1,370m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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57
riders
89.6km
04:11
760m
760m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
43
riders
91.7km
04:15
620m
620m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
22
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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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.
0
0
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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There are 19 road cycling routes documented around Llandeilo on komoot, offering a variety of experiences for different skill levels.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.


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