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Routes
Road cycling routes
United Kingdom
Wales
South Wales
Carmarthenshire

Cilycwm

The best traffic-free bike rides around Cilycwm

4.8

(17)

875

riders

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No traffic road cycling routes around Cilycwm traverse the Towy River valley, characterized by its diverse landscapes and natural features. The region features ancient oak woodlands, upland heath, and the prominent Llyn Brianne Reservoir. Road cycling in this area includes routes with varied elevation profiles, from gently undulating paths to challenging climbs.

Best no traffic road cycling routes around Cilycwm

  • The most popular no traffic road cycling route is The Towy Bridge Inn – Rhandirmwyn Bridge loop from Rhandirmwyn, a 17.2 miles (27.7 km) trail that takes 1 hour 28 minutes to complete. This easy route features an elevation gain of 754 feet (230 meters) through the Towy Valley.
  • Another top favourite among local road cyclists is Llyn Brianne Dam – View of Llyn Brianne loop from Pwll Yr Hyddod, a difficult 35.5 miles (57.1 km) path. This route includes significant climbs, with an elevation gain of 3,646 feet (1,111 meters), offering views of the Llyn Brianne Reservoir.
  • Local road cyclists also love the Llyn Brianne Dam – Llandovery Castle Ruins loop from Cilycwm, a 31.3 miles (50.4 km) trail leading through the Towy Valley and past historical sites, often completed in about 2 hours 56 minutes.
  • Road cycling around Cilycwm is defined by the Towy River valley, ancient woodlands, and the Llyn Brianne Reservoir. The network offers options for different ability levels, from easy valley rides to difficult routes with substantial elevation gain.
  • The routes in Cilycwm are highly rated by the komoot community with an average score of 4.7 stars from more than 10 reviews. More than 900 road cyclists have used komoot to explore Cilycwm's varied terrain.

Last updated: April 24, 2026

34

riders

#1.

The Towy Bridge Inn – Rhandirmwyn Bridge loop from Rhandirmwyn

27.7km

01:28

230m

230m

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

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Easy

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

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

Moderate

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

Moderate

Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.

Moderate

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Traffic-free bike rides around Cilycwm

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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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It's going to climb!

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 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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Built in 1913 the Rhandirmwyn Bridge links the two sides of the Towy valley by this rivetted girder road bridge. On the southern side you'll find the Towy Bridge Inn, a lovely riverside pub.

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THE TALE OF THE WELSH “ROBIN HOOD” Known as Twm Siôn Cati Twm Siôn Cati is a historically known figure in Welsh folklore. A tale recounted by Meyrick recalls how Twm was asked by a poor man to steal a pitcher for him. They went together to a merchant where Twm started belittling the man's wares. Having told his friend secretly to take the pitcher of his choice, Twm distracted the merchant by telling him there was a hole in one of the pitchers, which the man denied. Twm desired him to put his hand in the pitcher to test it and the man still denied there was a hole. Twm then asked him how, if there was no hole, could he have put his hand inside? By this time his friend had disappeared with his pitcher, undetected. A tale from Prichard's book involves an occasion when Twm is staying in an inn overnight and realises other people are planning to rob him the following day after he sets off. He has a large sum of money with him. The following morning he behaves as though his money is in the pack-saddle of his horse. When the highwayman catches up, Twm drops the saddle in the middle of a pool. The highwayman wades into the pool to fetch it, Twm takes the opportunity to make off with the highwayman's horse. A complication arises because the horse responds to the voice of the highwayman crying "Stop!" Luckily Twm, in terror, happens to shout a word which makes the horse gallop on again, and he is conveyed to safety. Another tale recounts how Twm waylaid a rich squire, who was accompanied by his daughter, Twm was so smitten with her that he returned her jewellery to her and attempted to woo her, against her father's opposition and, initially, her own. One full moon shortly after the robbery, he crept to her window, roused her from sleep, caught her hand at the window and kissed it, refusing to let her go until she promised to marry him. She wouldn't promise so Twm drew his dagger, drew blood on her wrist and threatened to sever her hand unless she assented to marriage forthwith. She agreed to marry him and she kept her hand. Their marriage followed soon after, despite her father's views and the directness of Twm's courtship methods. The girl was supposedly the widow of the sheriff of Carmarthen. Through this marriage Twm is supposed to have gained respectability, eventually becoming a justice of the peace, sitting in judgement on others, a position he held until his death aged 79.

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Lee
August 19, 2023, Dolauhirion Bridge

Dolauhirion Bridge dates from 1773 and is attributed to William Edwards. It is a stone bridge with an 83 ft. span and 12 ft. carriageway at the crown. The bridge has a plain segmental arch and stone parapets. It has been recognised as one of the 12 most beautiful bridges in the world. (Source: https://coflein.gov.uk/en/site/23969?term=Dolauhirion)

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This attractive RSPB site has a circular footpath adjacent to a river with beautiful rock cascades and old mossy trees. It is also home to the Twm Sion Cati's cave. All worth a look off of the bike.

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Frequently Asked Questions

How many no-traffic road cycling routes are available around Cilycwm?

There are 6 dedicated no-traffic road cycling routes around Cilycwm, offering a variety of distances and elevations for a peaceful ride away from busy roads.

Are there any easy no-traffic road cycling routes suitable for beginners or a relaxed ride?

Yes, for an easier ride, consider The Towy Bridge Inn – Rhandirmwyn Bridge loop from Rhandirmwyn. This route covers approximately 27.7 km with a gentle elevation gain of around 230 meters, making it ideal for a relaxed cycling experience.

What kind of scenery can I expect on these no-traffic routes?

The no-traffic routes around Cilycwm offer stunning scenery, including the picturesque Towy River valley, ancient oak woodlands often referred to as 'Celtic Rainforests', and views of the expansive Mynydd Mallaen upland heath. You'll find 'sweet tarmac roads' winding through vast, open spaces with epic views, especially around the Llyn Brianne Reservoir.

Are there any challenging no-traffic road cycling routes for experienced riders?

Absolutely. For a more challenging experience, the Llyn Brianne Dam – View of Llyn Brianne loop from Pwll Yr Hyddod is a difficult route spanning about 57 km with over 1,100 meters of elevation gain. This route will test your endurance while rewarding you with spectacular views.

What are some notable landmarks or attractions I can see along these routes?

Many routes offer glimpses of the region's natural beauty and history. You might encounter the striking Llyn Brianne Gravel Road, which snakes around the reservoir, or pass by the historic Llandovery Castle Ruins. The area is also known for its ancient woodlands and the Towy River valley.

Are there any circular no-traffic road cycling routes?

Yes, most of the no-traffic routes in this guide are circular, allowing you to start and finish at the same point. Examples include The Towy Bridge Inn – Rhandirmwyn Bridge loop from Rhandirmwyn and Llyn Brianne Dam – Llandovery Castle Ruins loop from Cilycwm.

What is the best time of year to enjoy no-traffic road cycling in Cilycwm?

The region's 'spotless beauty' and diverse habitats are enjoyable throughout the warmer months. Spring and autumn offer pleasant temperatures and vibrant landscapes, while summer provides longer daylight hours. Always check local weather conditions before heading out, especially given the varied terrain.

What do other road cyclists enjoy most about the no-traffic routes in Cilycwm?

The komoot community highly rates the cycling experience in Cilycwm, with an average score of 4.7 stars. Reviewers often praise the quiet country lanes, the stunning natural beauty of the Towy Valley and Llyn Brianne, and the opportunity for peaceful rides away from traffic.

Are there any routes that pass by the Llyn Brianne Reservoir?

Yes, several routes offer views of or pass near the Llyn Brianne Reservoir. For instance, the The Towy Bridge Inn – Llyn Brianne Dam loop from Cilycwm is a moderate route that takes you to the dam, offering excellent views of this striking feature.

Can I find amenities like cafes or pubs along these no-traffic routes?

While the routes themselves focus on quiet roads, Cilycwm and nearby villages like Rhandirmwyn offer local pubs and potentially cafes where you can refuel. It's always a good idea to plan your stops in advance, especially on longer routes, as services can be sparse in this rural area.

What is the typical duration for these no-traffic road cycling routes?

The duration varies significantly depending on the route's distance and your cycling pace. For example, an easier route like The Towy Bridge Inn – Rhandirmwyn Bridge loop might take around 1.5 hours, while a more challenging one such as Llyn Brianne Dam – View of Llyn Brianne loop could take over 3.5 hours.

Most popular routes around Cilycwm

Road Cycling Routes around Cilycwm

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