4.6
(14)
1,304
riders
16
rides
Road cycling around Ystradgynlais offers diverse landscapes, from the Swansea Valley to the fringes of the Brecon Beacons National Park. The region features a mix of well-paved roads, challenging hill climbs, and gentler riverside paths. Cyclists can navigate routes alongside the River Tawe and through areas with a rich industrial heritage, providing varied terrain for different fitness levels. The landscape includes impressive hills and offers views of the rugged Brecon Beacons.
Last updated: July 6, 2026
50
riders
100km
04:59
1,250m
1,250m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(1)
41
riders
51.4km
02:22
540m
540m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

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41
riders
48.3km
02:08
390m
390m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
29
riders
23.9km
01:06
280m
280m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
17
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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Great road for cycling up/down. The surface has degraded a bit over recent years, but still a great climb/descent.
0
0
Great climb, long but not too steep. Views are absolutely amazing !!!
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The Black Mountain Category 3 Climb from Brynaman is a 5.5km climb with a total ascent of 312m, topping out at 495m. The average gradient is 5.8% with the steepest 100m section reaching 8.4%. Grind out the best gear you can on the consistent slope and gradually as you rise above the valley towards the plateau you are rewarded with some of the best scenery in Wales. You've earnt the descent.
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The Black Mountain Category 3 Climb from Brynaman is a 5.5km climb with a total ascent of 312m, topping out at 495m. The average gradient is 5.8% with the steepest 100m section reaching 8.4%. Grind out the best gear you can on the consistent slope and gradually as you rise above the valley towards the plateau you are rewarded with some of the best scenery in Wales. You've earnt the descent.
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0
Anyone who cycles to the Garden can, on handing in their helmets for safe keeping, get into the Garden for half price (based on the adult ticket price). The Carmarthen-Llanelli loop on the National Cycle Network route 47, goes past the entrance of The National Botanic Garden of Wales, known as the Celtic Trail.
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Spend a few moments on the bridge over the River Sawdde river to take in the view. A great bird watching spot, if you are patient or lucky enough you may see Sandpipers, Dipper or Kingfisher here.
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There are 17 road cycling routes around Ystradgynlais, offering diverse landscapes from the Swansea Valley to the fringes of the Brecon Beacons National Park. These routes cater to various fitness levels, from easy riverside paths to challenging hill climbs.
Yes, Ystradgynlais offers easier options. Segments of the National Cycle Route 43 are largely well-paved and suitable for all fitness levels. For a specific route, consider the National Cycle Route 43 loop from Abercraf, which is rated as easy. The Amman Valley Cycleway is also mentioned as a traffic-free, mostly flat path ideal for gentle rides.
The terrain around Ystradgynlais is varied. You'll find a mix of well-paved roads, challenging hill climbs, and gentler riverside paths. Some routes, like the Swansea Canal Towpath – Aberdulais Stone Bridge loop from Ystradgynlais, may include segments that are unpaved, offering a diverse cycling experience.
Absolutely. For those seeking a challenge, the area offers 7 difficult routes. A notable option is the Brynaman Bike Path – Bethlehem Hamlet loop from Ystradgynlais, a long and demanding ride with significant elevation gain, requiring very good fitness.
Many routes offer stunning views, especially those venturing towards the Brecon Beacons National Park. The Cefn Gwrhyd Hill Climb – View of the Brecon Beacons loop from Ystradgynlais is specifically designed to provide vistas of the Brecon Beacons. You can also find expansive views from summits like Fan Brycheiniog and Picws Du, which overlooks Llyn y Fan Fach.
Yes, the region is characterized by its rivers and waterfalls. Cycling routes often follow rivers, providing picturesque scenery. You can find routes along the River Tawe, and the area is home to notable waterfalls such as Henrhyd Falls and Sgwd Gwladus Waterfall, which are popular attractions.
The road cycling routes in Ystradgynlais are highly rated by the komoot community, with an average score of 5.0 stars. Cyclists often praise the diverse landscapes, the access to the dramatic scenery of the Brecon Beacons, and the variety of terrain that caters to different skill levels.
Yes, many of the routes around Ystradgynlais are designed as loops, allowing you to start and end in the same location. Examples include the Aberdulais Stone Bridge – Swansea Canal Towpath loop from Cwmllynfell and the National Cycle Route 43 loop from Abercraf.
While specific seasonal recommendations aren't provided, the diverse landscapes and access to the Brecon Beacons suggest that spring and summer offer the most pleasant weather for exploring. Autumn can also be beautiful with changing foliage, though conditions may be cooler and wetter.
Beyond the natural beauty, the region has a rich industrial past, and remnants of this heritage can be explored. You'll also find impressive summits like Fan Brycheiniog and Fan Gyhirych Summit Trig Point, offering panoramic views.
Yes, the area features routes that incorporate canal towpaths. The Swansea Canal Towpath – Aberdulais Stone Bridge loop from Ystradgynlais is a moderate ride that includes segments along the Swansea Canal Towpath, offering a different kind of cycling experience.


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