4.7
(3)
91
riders
6
rides
Gravel biking around Rassau offers a diverse landscape characterized by rolling hills, former industrial areas, and scenic reservoir paths. The region features a mix of challenging climbs and more moderate sections, often following old railway lines or forestry tracks. Gravel bike trails near Rassau public transport are accessible, providing varied terrain suitable for different skill levels. The area's geology includes remnants of quarrying, which contribute to its unique and rugged character.
Last updated: July 3, 2026
9
riders
44.5km
02:45
500m
500m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
2
riders
21.5km
01:41
410m
410m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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8
riders
56.5km
03:26
710m
710m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(1)
10
riders
45.8km
03:08
720m
720m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
riders
40.1km
02:42
570m
580m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Pentwyn Reservoir is the smaller sister to Pontsticill Reservoir, both being separated by a causeway going towards the old Dolygaer outdoor centre. It is a very popular spot with fishermen and outdoor enthusiasts alike. The reservoir is used daily for a mix of watersports such as paddle boarding, kayaking, canoeing and raft building. It is in a beautiful setting, and you have great views north towards Pen y Fan and nice walks nearby.
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Very nice bridge not for traffic though as it’s a single lane track with passing gaps for pedestrians.
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One of my favourite places in the Beacons for cycling or hammock camping.
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To access this area is a very steep incline and decline into this valley section 7- 9% gradient in either direction. The Taf Fechan LNR comprises about 2.5 km of river with steep valley sides of Carboniferous limestone. The river has eroded the limestone into a narrow gorge in the centre of the site. A mosaic of deciduous woodland on the slopes with a canopy of Beech, Birch and Ash, gives way to Alder and Grey Willow closer to the river.
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is the largest stillwater reservoir in the central Brecon Beacons at 318 acres
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It's a beautiful canal but what is amazing is that it runs all the way to Brecon
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There are over 10 gravel bike trails documented on komoot for the Rassau area, offering a variety of experiences from moderate to difficult. These routes explore the region's unique landscape of rolling hills, former industrial sites, and scenic reservoir paths.
While many routes in Rassau are rated moderate to difficult, the region does offer sections that are more accessible. For a moderate option, consider the Talybont Reservoir – View of Talybont Reservoir loop from Aber, which provides scenic vistas over 13.4 miles (21.5 km) without overly challenging climbs.
Gravel biking around Rassau offers diverse scenery, including extensive views around reservoirs like Talybont and Pontsticill. You can also encounter natural monuments such as Keeper's Pond (Pen-Ffordd-Goch Pond) and the impressive Blaen-y-Glyn Waterfalls. Many routes also feature viewpoints like Talybont Reservoir Gravel Climb and the Tor y Foel Summit.
Yes, many of the gravel bike routes around Rassau are designed as loops, allowing you to start and finish at the same point. Examples include the challenging Talybont Reservoir – Talybont Reservoir loop from Crickhowell and the Llanelly Quarry Limekilns loop from Ebbw Vale Town, which explores former quarry sites.
The region's gravel bike trails are often accessible from towns like Ebbw Vale Town, which has public transport links. Routes such as the Clydach Cycle Path – Llanelly Quarry Limekilns loop from Ebbw Vale Town start directly from these more connected locations, making them convenient for those using public transport.
The gravel biking routes in Rassau are highly rated by the komoot community, with an average score of 5.0 stars from over 2 reviews. Users often praise the varied terrain, from reservoir loops to former industrial landscapes, and the options available for different ability levels.
The diverse landscape of Rassau, with its mix of forestry tracks and old railway lines, can be enjoyed throughout much of the year. Spring and autumn offer pleasant temperatures and vibrant scenery, while summer provides longer daylight hours. Winter rides are possible, but conditions can be more challenging due to weather and trail surface changes.
Beyond the natural beauty, you'll find historical and industrial landmarks. The area features remnants of quarrying, such as those explored on the Llanelly Quarry Limekilns loop. You might also encounter the Cwm Callan Roman Road Trail, offering a glimpse into the region's past.
Yes, Rassau offers several longer gravel bike routes for those seeking a more extensive ride. For example, the Llanelly Quarry Limekilns loop from Ebbw Vale Town spans 35.8 miles (57.6 km), and the Talybont Reservoir – Talybont Reservoir loop from Crickhowell is 27.5 miles (44.2 km), both providing significant distances to cover.
Absolutely. Rassau is known for its challenging climbs and varied terrain, making it suitable for advanced gravel bikers. Routes like the Trefil Quarry Cliffs – Pontsticill Reservoir loop from Tredegar are rated as difficult, featuring significant elevation changes and rugged sections that will test your skills.
Many outdoor trails in the Rassau region are suitable for dogs, especially those on forestry tracks and quiet paths. However, it's always recommended to keep dogs on a lead, particularly near livestock or in nature conservation areas. Check specific route details on komoot for any restrictions or advice regarding dogs.
Parking is generally available near the starting points of many popular routes, especially in towns like Ebbw Vale Town or near major attractions like the Talybont Reservoir. Look for designated car parks or roadside parking areas, but always check local signage for any restrictions or fees.


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