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Routes
Road cycling routes
United Kingdom
Wales
South Wales
Carmarthenshire

Cilycwm

The best road cycling routes around Cilycwm

4.8

(16)

798

riders

57

rides

Road cycling around Cilycwm features routes through the Towy and Cothi river valleys, characterized by rolling hills and scenic rural landscapes. The area borders the Bannau Brycheiniog (Brecon Beacons) National Park, offering varied terrain from moderate valley loops to challenging climbs. Road cyclists can expect a mix of open country roads, forested sections, and routes that pass by reservoirs and historic towns. The region's topography provides diverse options for different skill levels.

Best road cycling routes around Cilycwm

  • The most…

Last updated: May 23, 2026

5.0

(2)

36

riders

#1.

Black Mountain, Devil's Elbow & Usk Reservoir loop from Llandovery

115km

06:00

2,000m

2,000m

Embark on a challenging racebike journey through the Bannau Brycheiniog National Park with the Black Mountain, Devil's Elbow & Usk Reservoir loop. This difficult 71.7-mile (115.4 km) route will test…

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Hard

5.0

(2)

33

riders

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

Moderate
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Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard

2

riders

This difficult 57.6-mile road cycling loop from Llandovery takes you through the scenic Towy & Cothi Valleys with 4310 feet of elevation gai

Hard

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

Hard
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Tips from the Community

Paul Key
June 16, 2025, Glynneath Hill Climb

What an absolute gem of a climb. One of my favourites !!!

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Some steep climbing but the scenery is sublime.

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Great climb, long but not too steep. Views are absolutely amazing !!!

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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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Unavoidable !

Translated by Google

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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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Frequently Asked Questions

How many road cycling routes are available around Cilycwm?

There are over 50 road cycling routes around Cilycwm, offering a diverse range of experiences from gentle valley rides to challenging mountain passes. The komoot community has explored these routes over 900 times.

What kind of terrain can I expect when road cycling in Cilycwm?

Road cycling in Cilycwm features routes through the Towy and Cothi river valleys, characterized by rolling hills and scenic rural landscapes. The area borders the Bannau Brycheiniog (Brecon Beacons) National Park, providing varied terrain from moderate valley loops to challenging climbs with significant elevation gain.

Are there road cycling routes suitable for beginners in Cilycwm?

Yes, Cilycwm offers several routes suitable for beginners. There are 10 easy routes available, providing a gentler introduction to the region's beautiful scenery. These routes typically feature less elevation gain and shorter distances.

Which routes are recommended for experienced road cyclists seeking a challenge?

For experienced road cyclists, Cilycwm offers 23 difficult routes with significant ascents. A challenging option is the Brecon, Merthyr Tydfil & Black Mountain loop from Llandovery, which covers over 140 km and includes substantial climbing through mountainous terrain.

What are some scenic highlights or landmarks I can see along the road cycling routes?

Many routes pass by notable landmarks and scenic spots. You might encounter the Llyn Brianne Gravel Road, the challenging Devil's Staircase Climb (Abergwesyn), or the historic Llandovery Castle Ruins. The Abergwesyn Pass – Llyn Brianne Dam loop from Llandovery specifically leads past the Llyn Brianne Dam.

Are there any family-friendly road cycling options in the Cilycwm area?

While specific 'family-friendly' routes are not explicitly categorized, the easier road cycling routes, which number around 10, would generally be more suitable for families. These routes tend to be shorter and have less demanding climbs, making them a good option for a more relaxed ride.

What do other road cyclists enjoy most about the routes in Cilycwm?

The road cycling routes in Cilycwm are highly rated by the komoot community, with an average score of 4.7 stars from over 18 reviews. Reviewers often praise the varied terrain, from scenic river valleys to challenging mountain passes, and the opportunity to explore the rural landscapes bordering the Bannau Brycheiniog (Brecon Beacons) National Park.

Are there many loop routes for road cycling around Cilycwm?

Yes, many of the road cycling routes around Cilycwm are designed as loops, allowing you to start and finish in the same location. Examples include the Llandovery to River Cothi Valley loop and the Towy & Cothi Valley loop from Llandovery.

What is the best time of year for road cycling in Cilycwm?

The best time for road cycling in Cilycwm is generally from spring through early autumn (April to October). During these months, the weather is typically milder and more stable, making for more enjoyable conditions on the rolling hills and mountain passes. Winter can bring more challenging conditions, including colder temperatures and potential for adverse weather.

How long do road cycling routes in Cilycwm typically take to complete?

Route durations vary significantly based on distance and difficulty. Shorter, moderate routes like the Llandovery to River Cothi Valley loop (45.2 km) can take around 2 hours 20 minutes. More challenging and longer routes, such as the Black Mountain, Devil's Elbow & Usk Reservoir loop from Llandovery (115.4 km), can take over 6 hours.

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