4.8
(36)
2,216
riders
61
rides
Road cycling routes around Trawsfynydd are situated within Snowdonia National Park, offering a diverse landscape for cyclists. The area features rugged mountains, serene lakes, and expansive forests, providing varied terrain. Cyclists can navigate minor roads, railway paths, and forestry tracks, with routes ranging from challenging climbs to more leisurely loops around water bodies like Llyn Trawsfynydd. The region's geology includes significant elevation changes, characteristic of the Welsh mountains.
Last updated: July 7, 2026
5.0
(1)
66
riders
64.9km
03:32
1,020m
1,020m
Prepare for a demanding road cycling adventure on this difficult 40.3-mile (64.9 km) loop from Trawsfynydd. You will tackle significant climbs, gaining 3342 feet (1019 metres) in elevation over approximately…
4.8
(6)
51
riders
63.9km
03:26
1,070m
1,070m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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23
riders
57.9km
03:15
920m
920m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
26
riders
32.5km
01:52
680m
680m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
14
riders
87.7km
04:56
1,620m
1,620m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
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The climb up to Bwlch-y-Groes from Llanymawddwy is a tough one. It is about 3.4 km long and has about 387 m of vertical ascent to get to the gap at 546 m above sea level. You will have an average gradient of 11.3% to grind away at, but you will be rewarded with fantastic views north and south.
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You'll probably be too gassed to look out for it, about 2/3rds the way up to the top of Cwm Penmachno from Lan Ffestiniog, so a good indicator of how far you've come.
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Small train station in the mountains - slate was once mined here - now a tourist attraction.
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A 10/10 piece of road starting just after Dolhendre caravan park. The roads are smooth and winding, with some steep but varied gradients. Keep an eye out for the waterfalls and enjoy the descent heading towards Trawsfynydd: just watch out for the gates!
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Winding single track road with a few gates to go through. I would recommend riding this from East to West to get the most fun decending
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No haute cuisine, but coffee and delicious cakes and rustic soups and other dishes. Very good after the strenuous hike.
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Road cycling around Trawsfynydd, nestled within Snowdonia National Park, features a diverse landscape. You'll encounter rugged mountains, serene lakes, and expansive forests. The routes often involve significant elevation changes characteristic of the Welsh mountains, with options ranging from challenging climbs to more leisurely loops around water bodies like Llyn Trawsfynydd. You'll ride on minor roads, railway paths, and forestry tracks.
Yes, while many routes in the region offer challenging climbs, there are also easier options. The area provides a network of routes suitable for different ability levels. For example, the 8-mile circular loop around Llyn Trawsfynydd uses minor roads, railway paths, and forestry tracks, and is mostly easy-going, though it does have one steep section with rewarding views.
The Trawsfynydd area offers stunning natural features and landmarks. You can enjoy views of the Rhinogau Mountains and the impressive Trawsfynydd Dam. The region is also home to beautiful waterfalls like Rhaeadr Ddu (Black Falls) Waterfalls, known for its crystal-clear plunge pool. Other highlights include the Moelwyn Mawr summit and Arenig Fawr Summit and Flying Fortress Memorial, offering panoramic views.
Yes, circular routes are a popular option in Trawsfynydd. A notable example is the 8-mile loop around Llyn Trawsfynydd, which offers impressive views of the lake. For a longer, more challenging circular ride, consider A loop of three llyns from Trawsfynydd, which covers 40.3 miles (64.9 km) and provides views of multiple lakes and mountainous terrain.
The best time for road cycling in Trawsfynydd, like much of Snowdonia, is generally from late spring to early autumn (May to September). During these months, you can expect milder weather, longer daylight hours, and less chance of severe rain or strong winds, making for more enjoyable rides through the diverse landscapes.
Absolutely. Trawsfynydd offers several challenging routes with significant elevation gains. For instance, Penmachno Climb – Royal Oak Hotel, Betws-y-Coed loop from Llan Ffestiniog is a difficult 39.7-mile (63.9 km) path featuring substantial climbs through the Welsh mountains. Another demanding option is Bwlch y Groes – Bwlch yr Oerddrws loop from Maentwrog, an 87.9 km route with over 1600m of elevation gain.
Parking is available at various points around Trawsfynydd, particularly near popular starting points for routes. The Llyn Trawsfynydd area often has designated parking facilities. For routes extending further into Snowdonia, look for parking at visitor centers or trailheads, such as those near Coed y Brenin, which is just a 10-minute drive from Trawsfynydd.
While road cycling routes themselves are generally open, rules regarding dogs can vary, especially within Snowdonia National Park and on private lands or nature reserves. Always keep dogs under control, preferably on a lead, to protect livestock and wildlife. Check specific signage along routes or at trailheads for any restrictions, particularly in areas with grazing animals or sensitive habitats.
The area is highly rated by the komoot community, with an average score of 4.8 from over 30 reviews. Reviewers often praise the stunning and diverse landscapes, including the dramatic mountains and serene lakes, as well as the variety of routes catering to different skill levels. The quiet minor roads and picturesque scenery are frequently highlighted as major draws.
Yes, you'll find opportunities for refreshments in and around Trawsfynydd. The village itself offers amenities, and routes that pass through or near other towns like Bala or Betws-y-Coed will have cafes, pubs, and accommodation options. It's always a good idea to plan your route and check opening times in advance, especially in more remote areas.
Generally, no specific permits are required for road cycling on public roads and designated cycle paths within Snowdonia National Park. However, if you plan to venture onto private land or specific mountain biking trails (like those at Coed y Brenin), it's always best to check for any local regulations or fees. Stick to marked routes to ensure you are on permissible paths.
There are over 60 road cycling routes available around Trawsfynydd, offering a wide range of experiences. These include 7 easy routes, 32 moderate routes, and 24 difficult routes, ensuring options for cyclists of all abilities looking to explore the diverse landscapes of Snowdonia National Park.


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