FAQs about the Bwlch, Rhigos and Caerphilly Mountain climbs route
A challenging long‑distance cycle ride inspired by a favourite local route
At over 100km with significant climbing, this is a route designed for experienced road cyclists. It combines legendary South Wales climbs with sections of the Tour de France 2027 route, making it a standout endurance ride from Caerdydd (Cardiff).
Discipline: Road
Region: South East Wales (Caerdydd & Valleys)
Distance: 130 km
Total Elevation: High
Difficulty: Hard
Who is this route for? Experienced road cyclists looking for a challenging, full‑day ride with iconic climbs and Tour‑inspired terrain.
Ride a favourite loop through the South Wales Valleys
Starting at Llandaff Cathedral, this route reflects the kind of riding Peredur ap Gwynedd highlights when talking about Wales’ cycling landscape - where world-class climbs are never far from the city.
The ride heads out of Caerdydd along Llantrisant Road, gradually transitioning from urban streets into rolling countryside. Passing through Pontyclun, Llanharan and Bryncethin, the route builds steadily before reaching Cwm Ogwr (Ogmore Vale) and the first major climb: the Bwlch. This iconic ascent offers steady gradients and panoramic views across the Valleys.
Descending into Treorchi (Treorchy), the route immediately challenges again with the climb over the Rhigos - a longer, more exposed ascent that adds to the sense of progression. From here, the route moves through Hirwaun and down towards Aberdâr (Aberdare), before entering the Rhondda Fach where climbs like Bryn Du and Maerdy test both endurance and pacing.
As the route heads towards Nelson and Caerffili (Caerphilly), you join roads that will form part of the 2027 Tour de France route - riding terrain that will be seen on the global stage. The final test is the climb of Mynydd Caerffili (Caerphilly Mountain), before a fast descent back into Caerdydd.
Finishing where you started, this ride delivers a full day of classic Welsh road cycling - combining demanding climbs, changing landscapes and a strong connection to both local riding culture and the future of the sport in Wales.
Good to know
Refreshments:
There are multiple places to stop for refreshments along the route including:
- Cafés and shops in Pontyclun and Pen-y-bont ar Ogwr (Bridgend)
- Pubs and cafés in Treorci (Treorchy) and Aberdâr (Aberdare)
- Regular opportunities to refuel throughout the route
Services:
- Toilets, parking and public transport in Caerdydd
- Good public transport links available in valley towns with rail and bus links providing access points to the route
