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Road cycling routes

Brynich Aqueduct – Llangynidr Mountain Road loop from Rhymney

Road cycling routes

Brynich Aqueduct – Llangynidr Mountain Road loop from Rhymney

Hard

5.0

(2)

130

riders

Brynich Aqueduct – Llangynidr Mountain Road loop from Rhymney

05:11

104km

1,450m

Road cycling

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is accessible with public transport.

Last updated: August 7, 2026

Tips

The surface along some of this route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 32.1 km for 132 m

After 32.3 km for 132 m

Waypoints

A

Start point

Train Station

Get Directions

1

13.7 km

View of the Usk Valley from Bannau Brycheiniog Moors

Highlight • Viewpoint

An amazing view point and almost alpine descent. Ride over the top of the moors from the mining valleys and see the amazing green of the Brecon Beacons below. You …

Tip by

2

14.7 km

View of Bannau Brycheiniog from the Top of the Climb

Highlight • Climb

3

15.5 km

Llangynidr Road Climb (B4560 Switchbacks)

Highlight (Segment) • Viewpoint

The B4560 climb or descent through the switchbacks is a great road to ride in either direction. The high point is 518 m, and you start from either Llangynidr at …

Tip by

21.3 km

Glaw-coed Wood

Forest

5

25.5 km

Talybont Stores & Canalside Café

Highlight • Cafe

Stop in this little cafe all the time when I am hiking or biking. In fact I think I have invested enough in the place to have a shares dividend, …

Tip by

6

25.6 km

Water Tap at Bikes + Hikes

Highlight • Cycleway

bike issues, shop time!

Tip by

7

32.2 km

Brynich Aqueduct

Highlight • Historical Site

Brynich Aqueduct carries the Monmouthshire & Brecon Canal over the River Usk. After the green light was given for the aqueduct to be built in 1799, no time was wasted …

Tip by

8

61.1 km

River Tarell Crossing

Highlight • River

Lovely little crossing point over the River Tarell, nice and quiet and perfect for a quick drink before pushing on

Tip by

9

85.0 km

Llangynidr Mountain Road

Highlight (Segment) • Mountain Pass

A near-6km climb in the Black Mountains that averages a manageable 7% but ramps up to 15% in places

Tip by

B

104 km

End point

Train Station

Way Types & Surfaces

Way Types

54.8 km

35.6 km

11.4 km

1.16 km

1.01 km

233 m

< 100 m

Surfaces

95.5 km

8.11 km

340 m

337 m

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Elevation

Elevation

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

Highest point (510 m)

Lowest point (110 m)

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Weather

Powered by Foreca

Thursday 3 September

18°C

11°C

90 %

Additional weather tips

Max wind speed: 23.0 km/h

to get more detailed weather forecasts along your route

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