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Road cycling routes
United Kingdom
Wales
South Wales
Ceredigion

Llyn Brianne

The best road cycling routes around Llyn Brianne

4.8

(10)

349

riders

19

rides

Road cycling routes around Llyn Brianne traverse the dramatic landscapes of Mid Wales, encompassing parts of the Cambrian Mountains and Brecon Beacons. The region features the Llyn Brianne Reservoir, surrounded by the extensive Tywi Forest, offering a mix of challenging ascents and serene paths. Roads wind through exposed moorland, valleys, and alongside the reservoir, providing varied terrain for cyclists.

Best road cycling routes around Llyn Brianne

  • The most popular road cycling route is The Towy Bridge Inn – Llyn Brianne…

Last updated: July 5, 2026

5.0

(1)

22

riders

#1.

Llyn Brianne Dam – View of Llyn Brianne loop from Llyn Brianne

68.9km

04:16

1,320m

1,320m

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

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Hard

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate
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Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

Easy
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Popular around Llyn Brianne

MTB Trails around Llyn Brianne

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Cycling around Llyn Brianne

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Gravel biking around Llyn Brianne

Tips from the Community

chris Thomas
April 20, 2025, Cwm Rhaeadr Mountain Bike Trail

Cwm R MTB trail is completely blocked at top end due to hundreds of wind fallen trees this winter. Please consider before as you can not navigate loop.

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Confronting the Devil's Staircase northbound from near Llyn Brianne reservoir is tackling one of Wales's most infamous climbs, famed for its savage steepness and remote beauty. Prepare for an immediate, brutal ascent as the narrow single-track road rears up, averaging a punishing 10-13% but hitting steep ramps well over 20%, reportedly reaching 25-30%. Feel the wild exposure of the Cambrian Mountains, with stunningly remote views as your reward for conquering this truly devilish challenge.

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It's going to climb!

Translated by Google

0

1

Unavoidable !

Translated by Google

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1

It was a truly stunning spot to take in the scenery from this elevated panoramic viewpoint. Highly recommended.

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Andy Bryant
February 5, 2025, Abergwesyn Pass

It's a truly stunning ride valley mountain road and not to be missed if you are in the area.

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Andy Bryant
February 4, 2025, Llyn Brianne Dam

A short climb up from the road brings you to the Dam and carpark, there is no access over the Dam itself. But you do get a good view over the spillway and valley below.

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Devil’s Staircase is a climb for mountain bike type gears and an advantage for those that can ride out of the saddle .My attempts have failed miserably,best of luck.

2

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Frequently Asked Questions

What makes Llyn Brianne a great destination for road cycling?

Llyn Brianne offers a superb road cycling experience due to its dramatic and beautiful scenery, varied terrain, and quiet, winding roads. You'll find routes traversing the majestic Cambrian Mountains and Brecon Beacons, alongside the spectacular Llyn Brianne Reservoir and through the extensive Tywi Forest. The region provides a mix of challenging ascents and serene paths, catering to various fitness levels.

How many road cycling routes can I find around Llyn Brianne?

There are over 15 road cycling routes available around Llyn Brianne on komoot, ranging from easy to difficult. These routes have been explored by more than 300 road cyclists and are highly rated by the komoot community.

Are there any easy road cycling routes suitable for beginners in Llyn Brianne?

Yes, Llyn Brianne offers several easier road cycling options. There are 3 routes classified as easy, which often feature gently undulating paths around the reservoir with fewer sharp climbs. An example is The Towy Bridge Inn – Rhandirmwyn Bridge loop from Rhandirmwyn, which covers 27.7 km with moderate elevation gain.

What are some challenging road cycling routes in the Llyn Brianne area?

For experienced cyclists seeking a challenge, Llyn Brianne offers routes with significant climbs. The infamous Devil's Staircase, with gradients up to 25%, is a notable feature in the region. One challenging route is The Towy Bridge Inn – Llyn Brianne Dam loop from Cefn Fannog, a 68.9 km difficult trail with over 1300 meters of elevation gain, passing by the impressive Llyn Brianne Dam.

Can I find circular road cycling routes around Llyn Brianne?

Yes, many of the road cycling routes in Llyn Brianne are circular, allowing you to start and end at the same point. A popular option is a 65-mile circular route that navigates through the Cambrian Mountains and Brecon Beacons, skirting Llyn Brianne and Usk reservoirs. Another example is Abergwesyn Pass – Abergwesyn Valley loop from Nant yr Hwch, a moderate 44.6 km loop.

What natural features and landmarks can I see while road cycling in Llyn Brianne?

Road cycling routes in Llyn Brianne offer stunning views of the Llyn Brianne Reservoir and its impressive dam, which is the UK's tallest. You'll also cycle through the picturesque Tywi Forest, exposed moorland, and parts of the Cambrian Mountains and Brecon Beacons. Keep an eye out for wildlife like red kites and red squirrels, and consider visiting the Red Kite Feeding Station nearby.

What is the best time of year to go road cycling in Llyn Brianne?

The spring, summer, and early autumn months generally offer the most favorable conditions for road cycling in Llyn Brianne, with milder weather and longer daylight hours. The region's diverse scenery, from forests to moorland, provides ever-changing views throughout these seasons. Always check local weather forecasts before heading out, as conditions can change rapidly in mountainous areas.

Are there places to park for road cyclists in Llyn Brianne?

Yes, the Llyn Brianne area is accessible with various parking areas available. Some main car parks offer facilities like toilets, making them convenient starting points for your ride. These are often located near popular access points to the reservoir and surrounding routes.

What do other road cyclists say about the routes in Llyn Brianne?

The road cycling routes in Llyn Brianne are highly rated by the komoot community, with an average score of 4.7 stars from over 9 reviews. Cyclists often praise the quiet, winding roads, the dramatic scenery of the Cambrian Mountains, and the diverse terrain that offers both challenging climbs and serene stretches.

Are there any specific climbs or passes that are popular among road cyclists in Llyn Brianne?

Absolutely. The region is known for its challenging ascents. Beyond the infamous Devil's Staircase, the Abergwesyn Pass is a popular feature, offering varied terrain and stunning views. Another notable climb is the Bwlch Easgair Gelli, which is part of routes like the Bwlch Easgair Gelli Climb – Craig-y-Fintan loop from Nant-ystalwyn.

Are there any facilities like cafes or pubs near the road cycling routes in Llyn Brianne?

While Llyn Brianne is known for its remote and tranquil nature, some main car parks may offer facilities like mobile coffee stands. For more substantial refreshments, you might find cafes or pubs in nearby villages such as Rhandirmwyn or Tregaron, which serve as starting or ending points for some routes. It's always a good idea to plan your stops in advance.

Most popular routes around Llyn Brianne

MTB Trails around Llyn Brianne

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