4.6
(235)
3,842
riders
91
rides
Mountain biking around Hirwaun offers access to diverse landscapes at the northern end of the Cynon Valley, bordering the Brecon Beacons National Park. The region features rugged terrain with steep rocky slopes and uplands like Hirwaun Common and Craig-y-Llyn peak. Mountain bikers can explore routes through valleys, past reservoirs, and along escarpments, providing varied riding experiences.
Last updated: July 6, 2026
5.0
(2)
28
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.5
(4)
18
riders
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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4.5
(2)
10
riders
37.4km
03:20
790m
790m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.0
(2)
9
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
12
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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Pentwyn Reservoir is the smaller sister to Pontsticill Reservoir, both being separated by a causeway going towards the old Dolygaer outdoor centre. It is a very popular spot with fishermen and outdoor enthusiasts alike. The reservoir is used daily for a mix of watersports such as paddle boarding, kayaking, canoeing and raft building. It is in a beautiful setting, and you have great views north towards Pen y Fan and nice walks nearby.
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Stunning views and well worth the climb to the top
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A remnant of Merthyr's past. This bridge carried a railway line that either took you through a tunnel to Aberdare or sent you north towards Cefn Coed and on to Brecon via Torpantau. Under the bridge was the Merthyr to Cardiff Glamorganshire canal which carried the produce of Cyfarthfa iron works to the ports of Cardiff which was then shipped all over the world.
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One of my favourite places in the Beacons for cycling or hammock camping.
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Entrance to Rhigos forest, great for MTB, links to Afan & Glyncorrwg and gravel riding.
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There are over 90 mountain bike trails around Hirwaun. This includes 17 easy routes, 68 moderate routes, and 8 difficult routes, offering a wide range of options for all skill levels.
The terrain around Hirwaun is diverse, ranging from rugged uplands like Hirwaun Common and Craig-y-Llyn peak to scenic valleys and reservoir-side paths. You'll encounter steep rocky slopes, escarpments, and varied surfaces, including gravel paths and singletrack. Trails often border the Brecon Beacons National Park, providing challenging climbs and rewarding descents.
Yes, Hirwaun offers several family-friendly mountain bike routes. These are generally easier rides, often found along reservoir paths or within country parks. Look for trails designated as 'easy' in the komoot guide for suitable options.
Many of the mountain bike routes around Hirwaun are designed as circular loops, allowing you to start and finish at the same point. For example, the View of Talybont Reservoir – Talybont Reservoir loop from Cefn-coed-y-cymmer is a popular circular option, as is the Porth Yr Ogof Cave – Nant Hir Marker Stone loop from Ystradfellte.
The trails often pass by significant natural landmarks. You can encounter impressive summits like Pen y Fan, Corn Du summit, and Fan y Bîg Summit and Diving Board. Many routes also feature beautiful reservoirs such as Pontsticill Reservoir and Llwyn-on Reservoir Dam, and the region is close to 'Waterfall Country' with notable falls like Sgwd Yr Eira.
Yes, the mountainous terrain offers several excellent viewpoints. Trails often lead to spots with panoramic views of the Brecon Beacons and surrounding valleys. For instance, the Excalibur Singletrack – View of Llyn Fach loop from Rhigos Viewpoint Carpark starts near a prominent viewpoint. You can also find specific viewpoints like Fan Frynych Trig Point and Talybont Reservoir Gravel Climb.
The mountain bike trails around Hirwaun are highly rated by the komoot community, with an average score of 4.7 stars from over 200 reviews. Riders frequently praise the diverse landscapes, the challenging yet rewarding climbs, and the stunning views across the Brecon Beacons National Park. The variety of routes, from reservoir paths to rugged uplands, is also a common highlight.
Yes, many trailheads and popular starting points around Hirwaun offer dedicated parking facilities. For example, the Excalibur Singletrack – View of Llyn Fach loop starts from Rhigos Viewpoint Carpark, indicating accessible parking. It's always advisable to check specific route details for parking information.
While Hirwaun itself has bus routes, direct public transport access to all trailheads can be limited due to the rural nature of some areas. The 'Aberdare to Hirwaun Cycleway' is a specific route that connects these towns, suggesting some public transport links. For routes deeper into the Brecon Beacons, a car or a combination of transport might be more practical. Check local bus schedules for specific starting points.
Hirwaun and nearby towns offer various amenities, including cafes and pubs, where you can refuel after a ride. While not directly on every trail, many routes are within a reasonable distance of local establishments. The region is known for its welcoming atmosphere for outdoor enthusiasts.
Generally, permits are not required for mountain biking on public bridleways and designated trails in the Hirwaun area or within the Brecon Beacons National Park. However, always respect private land and adhere to any local signage. For specific facilities like BikePark Wales, separate entry fees or passes are required.
Spring and autumn often provide the most pleasant conditions for mountain biking around Hirwaun, with milder temperatures and vibrant scenery. Summer can be excellent, but trails may be busier. Winter riding is possible, but be prepared for colder, wetter conditions, and potentially muddy or icy trails, especially at higher elevations.


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