Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Login or Signup

Routes
Road cycling routes
United Kingdom
Wales
South Wales
Carmarthenshire
Llandeilo

Black Mountain climb loop from Llandeilo

Moderate

5.0

(1)

30

riders

Black Mountain climb loop from Llandeilo

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:

Bannau Brycheiniog National Park

Waypoints

A

Start point

Parking

Get Directions

1

124 m

Llandeilo Town Centre

Highlight • Settlement

Llandeilo can lay claim to being one of the prettiest towns in Wales, a charming place with superb inns and an interesting range of independent shops, cafes and restaurants.

Surrounded …

Tip by

2

8.54 km

Bethlehem Hamlet

Highlight • Settlement

Small hamlet on the fringes of the Brecon Beacons. Perfect for a Christmas themed trip. Nearest places with pubs/shops are Llandelio and Llangadog

Tip by

3

16.1 km

Black Mountain Climb from Pont Aber

Highlight (Segment) • Climb

Although not the classic side of the Black Mountain, this is still a fantastic road to climb that crosses the spine of the mountain and immerses you in some of …

Tip by

B

42.9 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

23.8 km

19.1 km

104 m

< 100 m

Surfaces

26.7 km

16.1 km

109 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (490 m)

Lowest point (30 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Monday 25 May

30°C

12°C

0 %

Additional weather tips

Max wind speed: 12.0 km/h

to get more detailed weather forecasts along your route

This route was planned by komoot.

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Frequently Asked Questions

What is the overall difficulty of the Black Mountain climb loop from Llandeilo?

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.

Where can I park to start this cycling route in Llandeilo?

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.

What kind of terrain can I expect on the Black Mountain climb loop?

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.

What are the best times of year to cycle this route?

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.

Are there any permits or entrance fees required to cycle in Bannau Brycheiniog National Park?

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.

What scenic highlights or viewpoints will I encounter on the loop?

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.

Does this route intersect with any other well-known trails?

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.

Are there any cafes or pubs near the route for a stop?

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.

What makes the Black Mountain climb so notable for cyclists?

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.

Is this Black Mountain the same as the 'Black Mountains' in the east of the 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.

Nearby routes

Hard

5.0

1,071

Swansea Ironman route

04:12h

90.6km

910m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy