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MTB trails
United Kingdom
Wales
South Wales
Ceredigion

Llanddewi Brefi

The best MTB trails around Llanddewi Brefi

4.4

(27)

301

riders

20

rides

Mountain biking around Llanddewi Brefi offers access to a diverse landscape, characterized by the remote charm of the Cambrian Mountains and the River Teifi valley. The region features a mix of natural terrain, including fire roads and single tracks, often becoming muddy. Llyn Brianne Reservoir provides a significant natural feature, with scenic gravel roads popular for cycling. This area presents varied challenges for mountain bikers, from accessible routes to demanding climbs.

Best mountain bike trails around Llanddewi Brefi

  • The most popular mountain bike trail is Cwm Rhaeadr Red Trail, a 4.1 miles (6.6 km) trail that takes about 41 minutes to complete. This accessible route welcomes riders of all proficiencies with a moderate elevation gain.
  • Another top favourite among local mountain bikers is Doethie Valley and Llyn Brianne loop, a moderate 21.1 miles (33.9 km) path. This route presents a rigorous experience with significant elevation, requiring good fitness and advanced skills.
  • Local mountain bikers also love the Llyn Brianne and the Cambrian Mountains loop, a 30.7 miles (49.5 km) trail leading through the wild Cambrian Mountains, often completed in about 4 hours 41 minutes.
  • Mountain biking around Llanddewi Brefi is defined by the remote Cambrian Mountains, the expansive Llyn Brianne Reservoir, and a network of fire roads and single tracks. The area offers options for various ability levels, from leisurely rides to challenging ascents.
  • The routes in Llanddewi Brefi are highly rated by the komoot community with an average score of 4.4 stars from over 20 reviews. More than 290 mountain bikers have used komoot to explore Llanddewi Brefi's varied terrain.

Last updated: April 21, 2026

5.0

(8)

74

riders

#1.

Cwm Rhaeadr Red Trail

6.63km

00:42

160m

160m

Experience the Cwm Rhaeadr Red Trail, an easy 4.1-mile mountain bike route with 535 feet of gain in 41 minutes.

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Easy

5.0

(1)

11

riders

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate
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3.0

(1)

5

riders

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

Hard

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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Hiking Collection by

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Tips from the Community

Zoe Evans
November 17, 2023, RSPB Gwenffrwd-Dinas Nature Reserve

THE TALE OF THE WELSH “ROBIN HOOD” Known as Twm Siôn Cati Twm Siôn Cati is a historically known figure in Welsh folklore. A tale recounted by Meyrick recalls how Twm was asked by a poor man to steal a pitcher for him. They went together to a merchant where Twm started belittling the man's wares. Having told his friend secretly to take the pitcher of his choice, Twm distracted the merchant by telling him there was a hole in one of the pitchers, which the man denied. Twm desired him to put his hand in the pitcher to test it and the man still denied there was a hole. Twm then asked him how, if there was no hole, could he have put his hand inside? By this time his friend had disappeared with his pitcher, undetected. A tale from Prichard's book involves an occasion when Twm is staying in an inn overnight and realises other people are planning to rob him the following day after he sets off. He has a large sum of money with him. The following morning he behaves as though his money is in the pack-saddle of his horse. When the highwayman catches up, Twm drops the saddle in the middle of a pool. The highwayman wades into the pool to fetch it, Twm takes the opportunity to make off with the highwayman's horse. A complication arises because the horse responds to the voice of the highwayman crying "Stop!" Luckily Twm, in terror, happens to shout a word which makes the horse gallop on again, and he is conveyed to safety. Another tale recounts how Twm waylaid a rich squire, who was accompanied by his daughter, Twm was so smitten with her that he returned her jewellery to her and attempted to woo her, against her father's opposition and, initially, her own. One full moon shortly after the robbery, he crept to her window, roused her from sleep, caught her hand at the window and kissed it, refusing to let her go until she promised to marry him. She wouldn't promise so Twm drew his dagger, drew blood on her wrist and threatened to sever her hand unless she assented to marriage forthwith. She agreed to marry him and she kept her hand. Their marriage followed soon after, despite her father's views and the directness of Twm's courtship methods. The girl was supposedly the widow of the sheriff of Carmarthen. Through this marriage Twm is supposed to have gained respectability, eventually becoming a justice of the peace, sitting in judgement on others, a position he held until his death aged 79.

1

0

Lovely mix of fire road to start with and then a huge climb up and over into a valley that time forgot - perfect single track - although can be a bit muddy in places. Probably best to make sure there has not been too much rain in the week before riding this route - and in the winter be prepared for quick changes of weather and plummeting temperatures.

1

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Largest man made lake in mid wales

1

0

A fantastic gravel track to the old chapel

1

0

This attractive RSPB site has a circular footpath adjacent to a river with beautiful rock cascades and old mossy trees. It is also home to the Twm Sion Cati's cave. All worth a look off of the bike.

1

0

Alex
November 23, 2022, Capel Soar y Mynydd

Capel Soar Y Mynydd is the most remote chapel in Wales. An invaluable spot to find some shelter on longer trips!

2

0

Strata Florida (Latin for ‘Vale of Flowers’) – is a ruined medieval monastery where generations of Welsh princes are buried. The abbey was founded in 1164 by white-robed Cistercian monks and it soon became the most famous church in Wales, after St Davids. Small coffee shop on-site, opening hours vary!

2

0

Cors Caron National Nature Reserve is a vast area of wetland filling the broad valley of the River Teifi. It offers great gravel paths off the main road if you have the bike for it. Or lock your bike up and go for a walk along the boardwalks to look for wildlife.

3

0

Frequently Asked Questions

How many mountain bike trails are there in Llanddewi Brefi?

There are over 20 mountain bike routes around Llanddewi Brefi, offering a diverse range of experiences from easy gravel paths to challenging singletrack. The komoot community has rated these trails with an average score of 4.4 stars.

Are there mountain bike trails suitable for beginners in Llanddewi Brefi?

Yes, Llanddewi Brefi offers several routes suitable for beginners. A great option is the Cwm Rhaeadr Red Trail, which is 4.1 miles long and considered easy to moderate, featuring a fun downhill section through a forest.

What are some challenging mountain bike routes in the area?

For experienced riders seeking a challenge, the Llyn Brianne and the Cambrian Mountains loop is a demanding 30.7-mile ride through wild mountainous terrain, requiring very good fitness and advanced skills. Another rigorous option is the Doethie Valley and Llyn Brianne loop, known for its challenging, narrow paths and significant elevation.

Are there any routes that pass by waterfalls or scenic water features?

Yes, the Cwm Rhaeadr Red Trail includes a descent through a forest that features Carmarthenshire's highest waterfall. Additionally, many routes incorporate the scenic Llyn Brianne Reservoir, such as the Doethie Valley and Llyn Brianne loop, offering picturesque views of the water.

Can I visit historical sites or natural landmarks while mountain biking?

Absolutely. The region is rich in natural beauty and history. The Twm Siôn Cati's Cave – Llyn Brianne Dam Crossing loop takes you past the historical Twm Siôn Cati's Cave. You can also find highlights like the challenging Devil's Staircase Climb (Abergwesyn) and the unique Wolf's Leap, River Irfon.

Are there circular mountain bike routes available?

Many of the mountain bike routes in Llanddewi Brefi are circular, allowing you to start and finish at the same point. Examples include the Doethie Valley and Llyn Brianne loop and the Llyn Brianne and the Cambrian Mountains loop.

Are the mountain bike trails in Llanddewi Brefi suitable for families?

While many trails offer challenging terrain, there are options for families. The wide, easy cycleway around the western shores of the Llyn Brianne Gravel Road provides a less strenuous ride with picturesque views, suitable for a family outing.

What kind of terrain can I expect on the mountain bike trails?

The terrain around Llanddewi Brefi is diverse, ranging from constructed tracks and ancient droving routes to exhilarating descents and challenging singletrack. You'll encounter a mix of fire roads, gravel paths, and natural trails, often becoming muddy, especially in wetter conditions. The landscape features rolling hills, river valleys, and open moorland.

What is the best time of year to go mountain biking in Llanddewi Brefi?

Spring and autumn offer pleasant temperatures and vibrant scenery, making them ideal for mountain biking. Summer provides longer daylight hours, though trails can be busier. Winter rides are possible but expect colder, wetter conditions and potentially very muddy trails, requiring appropriate gear and caution.

What do other mountain bikers enjoy about the trails in Llanddewi Brefi?

The area is highly rated by the komoot community, with an average score of 4.4 stars. Reviewers often praise the sense of 'unfettered wilderness riding,' the stunning natural beauty of the Cambrian Mountains, and the variety of trails that cater to different skill levels, from scenic gravel roads to challenging singletrack in areas like the Doethie Valley.

Are dogs allowed on the mountain bike trails in Llanddewi Brefi?

Generally, dogs are welcome on public rights of way and many trails in the Welsh countryside, provided they are kept under close control, especially around livestock. Always check local signage, particularly in nature reserves like the RSPB Gwenffrwd-Dinas Nature Reserve, for specific rules regarding dogs.

Where can I find parking for mountain biking in Llanddewi Brefi?

While specific parking areas aren't detailed for every trail, you can typically find parking near trailheads or in designated car parks within the Llanddewi Brefi area and around key attractions like Llyn Brianne Reservoir. It's advisable to check maps or local information for the most convenient parking for your chosen route.

Most popular routes around Llanddewi Brefi

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