Black Mountain climb loop from Llandeilo
Black Mountain climb loop from Llandeilo
5.0
(1)
30
riders
02:34
42.9km
900m
Road cycling
Cycle the Black Mountain climb loop from Llandeilo, a moderate 26.7-mile route with 2944 feet of elevation gain in Bannau Brycheiniog Nation
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
124 m
Highlight • Settlement
Tip by
8.54 km
Highlight • Settlement
Tip by
16.1 km
Highlight (Segment) • Climb
Tip by
42.9 km
End point
Parking
Way Types & Surfaces
Way Types
23.8 km
19.1 km
104 m
< 100 m
Surfaces
26.7 km
16.1 km
109 m
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Elevation
Highest point (490 m)
Lowest point (30 m)
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Weather
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Monday 25 May
30°C
12°C
0 %
Additional weather tips
Max wind speed: 12.0 km/h
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This route was planned by komoot.
This loop is considered a moderate to hard road ride. It demands a good to very good level of fitness due to significant elevation gains, including a particularly steep section with a 21.6% gradient within a hairpin bend. Expect challenging ascents and rewarding descents.
While the specific parking for the start isn't detailed, Llandeilo is the recommended starting point. You can typically find parking within the town centre, which is also a highlight: Llandeilo Town Centre.
The route predominantly features well-paved surfaces, ideal for racebikes. However, be prepared for some sections that can be unpaved and challenging. The roads are generally narrow and rural, and you might encounter sheep on the road, especially on less common approaches or higher up the climb.
The best time to cycle this route is generally from spring through autumn. During these seasons, you'll likely experience more favorable weather conditions and clearer views. Winter cycling can be challenging due to road conditions and colder temperatures at higher elevations.
No, there are no specific permits or entrance fees required to cycle this route within Bannau Brycheiniog / Brecon Beacons National Park. The park is freely accessible for activities like cycling, though standard road rules apply.
You can expect beautiful and stunning views, particularly over the Towy Valley, as you ascend. The ride offers an immersive experience within the picturesque Brecon Beacons National Park. Key points along the way include Llandeilo Town Centre and Bethlehem Hamlet, leading up to the challenging Black Mountain Climb from Pont Aber.
Yes, the route briefly intersects with several other paths. You'll find sections that overlap with the Heart of Wales Line Trail and the Cycle across the Beacons. Smaller portions also coincide with the Beacons Way and various segments of the Black Mountain Quarries Walk.
Llandeilo, being your starting and end point, offers various options for cafes and pubs where you can refuel before or after your ride. As you venture onto the more rural sections of the Black Mountain, amenities become scarce, so plan accordingly.
The Black Mountain climb holds a significant reputation among cyclists, having been included in Simon Warren's original '100 Greatest Climbs' list. While the Llandeilo approach offers a unique perspective, the climb itself is renowned for its demanding ascents and stunning vistas, making it a classic challenge within the Brecon Beacons National Park.
No, it's important to note that this 'Black Mountain' refers to the range situated in the western part of Bannau Brycheiniog / Brecon Beacons National Park. It is distinct from the 'Black Mountains' found in the eastern part of the park, which is a separate range.