4.0
(27)
196
riders
29
rides
Mountain biking around Llywel offers a variety of terrain, from rolling hills to forested paths. The region is characterized by its proximity to the Brecon Beacons National Park, featuring a mix of open moorland, reservoirs, and woodlands. Riders can expect routes that traverse ancient tracks and follow river valleys. The landscape provides diverse options for mountain bikers of varying skill levels.
Last updated: April 25, 2026
3.8
(6)
28
riders
32.0km
02:41
640m
640m
Embark on the Sarn Helen and Twyn y Gaer loop for a challenging mountain biking adventure through the Brecon Beacons National Park. This moderate 19.9-mile (32.0 km) route, which you…
4.5
(4)
22
riders
11.9km
00:59
160m
150m
Embark on an easy mountain biking adventure through the Usk Reservoir and Glasfynydd Forest loop. This route spans 7.4 miles (11.9 km) and involves a gentle climb of 517 feet…

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3.0
(1)
1
riders
This moderate 16.5-mile mountain bike loop from Dan-yr-Ogof explores the Banwen Gwys and Swansea Valley in Bannau Brycheiniog National Park.
5.0
(1)
4
riders
22.7km
02:14
490m
490m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
1.0
(1)
4
riders
37.5km
03:23
940m
940m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
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Gravel biking around Llywel
NCN43 follows old railways lines, riverbanks and canals from Swansea to Clydach. This section follows an old railway line, it's flat and gravelled, easy riding but pretty and no cars.
2
0
This road is a firm favourite with those who know it - which is surprisingly few. Enjoy the spectacular views across the Brecon Beacons and Carmarthenshire Fans, with good quality tarmac under your wheels and only occasional car traffic. The approach from Trecastle to the North is about a 7km climb, with an elevation gain of 259m, and an average gradient of 3.7%.
1
0
A nice easy route for walking or riding, So glad the track across the dam is now open again, just have to keep your eyes open for the dog shit left all over the place.
1
0
Definitely MTB, in a few sections up to S3
1
0
Fabulous climb and I agree that it's best from south to north. (Although I would say it's also a more enjoyable descent heading south...) Naturally beautiful and wild. Very quiet. Unexpectedly smooth tarmac. One of my favourite UK climbs.
2
0
Spectacular. Peaceful. Sometimes eerily quiet. Little to no traffic and a decent road surface. All adds up to one of the most spectacular and unassuming climbs in the Brecon Beacons (best climbed from the south).
2
1
Steadily ramps up towards the first hairpin - take the outside line if there's no oncoming traffic - ramps up to double digits after the first hairpin, with the gradient easing after the second. Generally a good road surface, albeit narrow in places - fortunately drivers are usually courteous and allow you to slowly grind your way up.
3
0
There are over 30 mountain bike trails around Llywel listed on komoot, offering a diverse range of experiences for riders. These routes traverse varied terrain, from rolling hills to forested paths within the Brecon Beacons National Park.
Yes, Llywel offers several easy mountain bike trails perfect for beginners or those seeking a relaxed ride. For example, the Usk Reservoir and Glasfynydd Forest loop is an easy 11.9 km path with scenic views.
The terrain around Llywel is varied, characterized by its proximity to the Brecon Beacons National Park. You can expect a mix of open moorland, reservoir paths, and woodlands. Routes often follow ancient tracks and river valleys, providing diverse options for all skill levels.
Yes, many mountain bike routes around Llywel are circular, allowing you to start and finish at the same point. A popular option is the Usk Reservoir and Glasfynydd Forest loop, which offers a scenic circular ride.
The mountain bike trails around Llywel are highly rated by the komoot community, with an average score of 4.0 stars from nearly 30 reviews. Riders often praise the diverse landscapes, from forest trails to reservoir loops, and the accessibility to the Brecon Beacons National Park.
Absolutely. Llywel offers a good selection of challenging mountain bike trails for experienced riders. There are 6 difficult routes available, providing significant elevation gains and technical sections. One such route is the Sarn Helen and Twyn y Gaer loop, a moderate route with substantial elevation through varied landscapes.
Yes, the Llywel area, being close to the Brecon Beacons, offers numerous scenic viewpoints. You can find stunning vistas from various mountain passes and peaks. Consider routes that pass near highlights like Fan Frynych Trig Point or View of the Central Beacons from the Cattle Grid for expansive views.
While mountain biking in Llywel, you can encounter several natural landmarks. The area is rich in mountain passes such as Bwlch Cerrig Duon Pass and various peaks like Fan Brycheiniog summit, offering impressive natural scenery.
Yes, Llywel's mountain biking landscape includes several forest trails. The Usk Reservoir and Glasfynydd Forest loop is a prime example, taking you through the beautiful Glasfynydd Forest. Another option is the Singletrack Gravel Path – Chrychan Forest loop.
The mountain bike trails around Llywel vary significantly in length. You can find shorter routes like the 11.9 km Usk Reservoir and Glasfynydd Forest loop, as well as longer, more demanding rides such as the 32 km Sarn Helen and Twyn y Gaer loop.
Yes, you can explore the Swansea Valley on a mountain bike from Llywel. The Banwen Gwys & Swansea Valley loop from Dan-yr-Ogof is a 26.5 km trail that leads through this scenic area, offering a great ride.


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