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The Racing Collective

Stage 5: Chepstow to Libanus — GB Divide

Stage 5: Chepstow to Libanus — GB Divide

55.2 mi
7.3 mph
5,125 ft
4,725 ft
Expert gravel ride. Very good fitness required. Some portions of the Tour may require you to push your bike.


More information

Includes segments in which cycling is forbidden

You will have to dismount and push your bike.

0.65 mi in total

The surface of a segment of this Tour may not be suitable.

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

99 yd in total

Tour Overview

Starting Point
6.15 mi

Wentwood Forest push up

Bike Touring Highlight

7.51 mi

Wentwood gravel forestry roads

Bike Touring Highlight

37.4 mi
43.4 mi

Pontsticill Reservoir

Bike Touring Highlight

46.8 mi

The Gap

Mountain Biking Highlight (Segment)

55.2 mi



Tour Profile


Singletrack: 1.77 mi
Path: 10.0 mi
Cycleway: 4.55 mi
Street: 3.33 mi
Road: 34.8 mi
State Road: 0.66 mi


Alpine: 0.26 mi
Unpaved: 12.1 mi
Compacted Gravel: 0.61 mi
Paved: 22.8 mi
Asphalt: 18.8 mi
Unknown: 0.65 mi

Weather Forecast


The Racing Collective planned a gravel ride.

March 24, 2020


  • The Racing Collective

    The first stage GB Divide through Wales is a truly memorable one; taking you from Chepstow on the Severn Estuary across the heart of the Brecon Beacons National Park. You might find that this is one of the few days you wish you were on a mountain bike! There's some potential hike-a-bike on The Gap, so leave yourself plenty of time.

    From the start in Chepstow, head north west largely following National Cycle Route 42 (Chepstow to Abergavenny), skirting around Wentwood Forest and through the pretty town of Usk. You’ll cross over a southern spur of the Brecon Beacons, still on quiet lanes, as you climb up to Blaenavon over the moorland.
    Take the National Cycle Route 492 and the main road to the old mining town of Brynmawr, where you’ll find the last place to pick up food before crossing the Beacons. Head out of town onto rocky, boggy singletrack that gives way to a well-surfaced gravel road leading to the cliffs past Trefil.

    Head down to Pontsticill Reservoir below you, tracing the western edge of the beautiful waters before crossing the Taf Fechan to start climbing gently along the other side of the valley.

    From here, you start ascending The Gap - a well-known and loved mountain biking route in these parts, the rocky doubletrack road leading up to the pass between Cribyn and Fan Y Big summits.

    It’s a great ride up there, relentless but fairly gradual, but when you reach the top you might have to walk the first few hundred meters down the other side, as the rocks give way to bigger boulders! Enjoy the views for a short while - it can get cold very quickly up here no matter what the season.

    After the bone-rattling, long descent from the Gap on rocky bridleway and grass, you’ll be glad to hear that stage one is nearly over. Take the network of gentle lanes heading west to reach Libanus on the main road where there’s a great pub for a big meal and accommodation.

    Alternatively, head east into Brecon town where you’ll find a much greater selection of hotels, guest houses and campsites.

    • March 24, 2020

The Racing Collective

Stage 5: Chepstow to Libanus — GB Divide