4.5
(10)
267
riders
18
rides
Mountain biking around Cors Y Llyn National Nature Reserve offers a network of trails through varied Welsh countryside. The region is characterized by rolling hills, dense woodlands, and open moorland, providing diverse terrain for mountain bikers. Many routes utilize existing bridleways and forest tracks, making it suitable for exploring the natural landscape. The area's elevation changes provide both challenging climbs and rewarding descents.
Last updated: August 29, 2026
5.0
(3)
81
riders
63.7km
05:33
1,150m
1,150m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
5.0
(2)
83
riders
51.2km
04:43
1,080m
1,080m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

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5.0
(1)
35
riders
38.7km
02:57
570m
570m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
19
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.0
(1)
3
riders
46.0km
03:56
890m
890m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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Route 8 comes into Builth Wells through a lovely park along the river. The Asda Express at the petrol station, visible from Route 8, is also a useful place to pick up supplies.
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A highlight for all the wrong reasons. as you head around the hairpin turn you will soon notice the ferns plus the terrain are not ridable. Get bars caught and down you will fall. Plus half of what you are stood on is just flattened ferns rather than soil which fell away underfoot. Managed to walk it while dragging my bike alongside me dangling down the hill. Please check your routes with a map as this is the 2nd komoot route that has directed me through areas that you currently just cant ride
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Great views far and wide & also the Fforest Fields campsite we stayed at which was very friendly and relaxed. Amazingly organised, clean and great amenities such as a lake, bar / cafe, guest food vans during the week and 24 hour shop.
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This life-size statue of a Welsh Black bull stands near the town's Wye Bridge. Made from bronze, the Builth Bull weighs 1.5 tons and was created by Gavin Fifield, a local sculptor. It was unveiled on 28 November 2005 to coincide with the first day of that year's Royal Welsh Winter Fair.
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Great picturesque trail cutting out the road and yes gates
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Burial place of an unknown person. Was he a pedlar buried on the hillside where he died? Or a villain buried away from the church in un-consecrated ground?
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A good place to stock up with supplies on Route 8. Friday is market day.
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By my reckoning it's about a 103m elevation gain, topping out at 392m, over a distance of a fraction over 1km - an overall 10% climb, with a short steeper section to test you out midway.
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There are 18 mountain bike trails recorded in the Cors Y Llyn National Nature Reserve area on komoot. These routes offer a variety of experiences across the region's rolling hills and woodlands.
The trails around Cors Y Llyn National Nature Reserve cater to various skill levels. There are 3 easy routes, 13 moderate routes, and 2 difficult routes, ensuring options for beginners to experienced riders.
Yes, there are 3 easy mountain bike routes available, perfect for beginners or those looking for a more relaxed ride. These trails typically feature less challenging terrain and elevation changes.
For experienced riders seeking a challenge, consider routes like Builth Wells Bridge – Co-op, Builth Wells loop from Builth Road. This difficult 32.3-mile (52.1 km) trail features significant elevation gain and demanding sections through the local landscape.
Trail lengths vary significantly. You can find shorter routes, but many trails are moderate to long, ranging from around 15 miles (24 km) up to nearly 40 miles (64 km). Durations can range from a couple of hours to over 5 hours for the longer, more challenging rides.
Yes, for a full-day adventure, the Co-op, Builth Wells – Bridleway Trail loop from Builth Road is a difficult 39.6-mile (63.8 km) trail that typically takes around 5 hours 34 minutes to complete, offering extensive exploration of the area.
While some routes are challenging, there are easy and moderate trails that can be suitable for families, especially those with some mountain biking experience. It's best to check the specific route details for distance and elevation before heading out with children.
Many routes in the area utilize existing bridleways and forest tracks, where dogs are generally permitted. However, as it's a National Nature Reserve, it's always advisable to keep dogs under close control, especially near livestock or sensitive wildlife areas, and to check local signage for any specific restrictions.
Specific parking information for each trailhead is often available within the individual komoot tour descriptions. Generally, you can find parking in nearby villages or designated car parks that serve the wider area, often near the start points of popular routes.
The spring, summer, and early autumn months generally offer the most favorable conditions for mountain biking, with milder weather and drier trails. However, the region's varied terrain means that conditions can change, and some trails may be rideable year-round, weather permitting.
The region's rolling hills and open moorland naturally offer numerous opportunities for scenic viewpoints. Routes like Viewpoint Above Fforest Fields – Co-op, Builth Wells loop from Builth Road explicitly mention viewpoints, providing rewarding vistas of the Welsh countryside.
The area is highly rated by the komoot community, with an average score of 4.6 stars. Reviewers often praise the diverse terrain, the network of bridleways through dense woodlands and open moorland, and the challenging climbs followed by rewarding descents.
While specific routes may not directly pass a pub, many trails start or end near towns and villages like Builth Wells, where you can find local pubs and cafes to refuel after your ride. It's a good idea to check the route map for proximity to amenities.


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