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Routes
Road cycling routes
United Kingdom
Wales
South Wales
Rhondda Cynon Taf

Mountain Ash East

The best road cycling routes around Mountain Ash East

4.2

(49)

3,779

riders

141

rides

Road cycling around Mountain Ash East, situated in Rhondda Cynon Taf, offers diverse landscapes for cyclists. The area is characterized by mountainous terrain, dense forests, and significant river valleys, including the River Taff. Key cycling infrastructure includes sections of the Taff Trail and the Hengoed Viaduct, which is part of National Cycle Route 47. Several reservoirs, such as Llwyn-on, provide varied scenery and ascents.

Best road cycling routes around Mountain Ash East

  • The most popular road cycling route is Smooth…

Last updated: July 8, 2026

5.0

(2)

243

riders

#1.

Rhigos Climb Viewpoint – Rhigos Mountain Viewpoint loop from Cwmbach

92.6km

04:17

820m

820m

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

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Moderate

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

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

Moderate
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Tips from the Community

Mark Jacobs
June 22, 2026, Treharris view

The road on the approach can be steep in places and beware of potholes.

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Great view of the valley just as you approach the bend.

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Jo53ph
December 12, 2025, Bedlinog Hill Climb

A challenging but rewarding climb, with pub at the bottom and a shop a quater of the way up, you steep out of the village, past the shop then it levels off before the climb again after half way it gets less steep but contunues to climb onto the moorland. Roadies follow the road, MTBs and gravel coninue up to the trig point for view of Cardiff and Sommeset beyong to the South and Bannau Brycheiniog to the North.

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Nice picturesque reservoir with a great campsite just below it if you are on a bike or hiking tour.

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you must stop to take in the views and structure 👌

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An epic road bike climb that not very difficult & has stunning views as you ascend

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Cefn-coed Viaduct was built in 1866 and is 770 ft (235 m) long and 120 ft (36.6 m) high. It is a rusticated-limestone structure of fifteen arches, set on a curve. The tall, slender piers and parapets are constructed with coursed irregular sized rock-faced limestone blocks

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The Cefn-coed Viaduct is the third-largest viaduct in Wales. This huge, curved structure once carried the Brecon and Merthyr Tydfil Junction Railway and is now part of the Taff Trail, which is Route 8 of the National Cycle Network that runs between Cardiff and Brecon. It offers walkers and cyclists a superb view of the Taf Fawr as it cascades over the many weirs in the valley

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Frequently Asked Questions

How many road cycling routes are available in Mountain Ash East?

Mountain Ash East offers a wide selection of road cycling routes, with over 145 options available. These routes cater to various skill levels, from easy rides to more challenging ascents.

What kind of terrain can I expect on road cycling routes around Mountain Ash East?

The region is characterized by mountainous terrain, dense forests, and picturesque river valleys, including the River Taff. You'll find routes that incorporate sections of the Taff Trail and the historic Hengoed Viaduct, offering a mix of natural beauty and industrial heritage. Many routes feature smooth tarmac, but be prepared for varied elevation changes.

What are the different difficulty levels for road cycling in Mountain Ash East?

Road cycling in Mountain Ash East caters to all abilities. There are 14 easy routes perfect for a relaxed ride, 91 moderate routes for those seeking a good workout, and 40 difficult routes for experienced cyclists looking for a challenge. The komoot community rates the routes highly, with an average score of 4.3 stars.

Are there any circular road cycling routes in Mountain Ash East?

Yes, many of the road cycling routes in Mountain Ash East are designed as loops, allowing you to start and finish in the same location. For example, the Smooth Tarmac Cycleway – Rhigos Climb Viewpoint loop from Cwmbach is a popular circular option offering great views.

What natural features or landmarks can I see while road cycling in Mountain Ash East?

You'll encounter diverse natural features and landmarks. Routes often pass through areas like St Gwynno Forest and along the River Taff. Notable attractions include the Llwyn-on Reservoir Dam, which is part of the Cwm Cadlan Nature Reserve – Llwyn-on Reservoir Dam loop from Mountain Ash. You might also spot various mountain peaks like Mynydd y Glyn Summit, offering scenic viewpoints.

Are there any routes that feature waterfalls?

Yes, some routes in the area incorporate natural attractions like waterfalls. For instance, the Waterfall Along Cycle Route – Smooth Climb to Pentyrch loop from Pentre-bach is a moderate route that specifically highlights a waterfall along its path, providing a scenic point of interest during your ride.

What is the best time of year for road cycling in Mountain Ash East?

The region's diverse landscapes are enjoyable throughout much of the year. While specific seasonal considerations can vary, spring and autumn generally offer pleasant temperatures and vibrant scenery, making them ideal for road cycling. Summer can also be excellent, though some climbs might be more challenging in warmer weather.

Are there family-friendly road cycling options in Mountain Ash East?

While many routes involve significant elevation, there are easier sections and dedicated cycle paths suitable for families. The Taff Trail, which has sections suitable for road cycling, and the Hengoed Viaduct (part of National Cycle Route 47) offer relatively flatter and safer environments away from heavy traffic, making them good choices for family outings.

What do other road cyclists enjoy most about road cycling in Mountain Ash East?

The area is highly rated by the komoot community, with an average score of 4.3 stars from over 40 reviews. Cyclists often praise the diverse landscapes, from challenging mountain climbs to serene reservoir views, and the well-maintained sections of cycle paths like those found on the Taff Trail and Hengoed Viaduct. The variety of routes ensures there's something for every skill level.

Are there any routes that pass by historical sites or industrial heritage?

Absolutely. The region has a rich industrial history. The Hengoed Viaduct, now part of National Cycle Route 47, is a prime example of transformed industrial heritage offering a unique cycling experience. The Taff Trail itself allows for exploration of the area's industrial archaeological past, including remnants of old tramways, providing a fascinating backdrop to your ride.

Can I find routes that offer challenging climbs and descents?

Yes, Mountain Ash East is known for its mountainous terrain, providing ample opportunities for challenging climbs and exhilarating descents. Routes like the Smooth Tarmac Cycleway – Rhigos Climb Viewpoint loop from Cwmbach feature significant elevation gain, including views from the Rhigos Climb, making them popular among cyclists looking for a demanding ride.

Are there any routes that connect to reservoirs?

Several routes in the area feature the region's beautiful reservoirs. The Cwm Cadlan Nature Reserve – Llwyn-on Reservoir Dam loop from Mountain Ash is a great example, leading you past the Llwyn-on Reservoir Dam. These routes often provide varied scenery and can include challenging ascents around the reservoir areas.

Most popular routes around Mountain Ash East

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