4.7
(240)
15,734
riders
677
rides
Road cycling routes in Gwynedd traverse a diverse landscape, characterized by the rugged mountains of Eryri (Snowdonia) National Park, serene lakes, and extensive forests. The region also features a spectacular coastline, including the Llŷn Peninsula and the Menai Strait, offering varied terrain for cyclists. Elevation changes are common, with routes ranging from coastal paths to significant mountain passes.
Last updated: May 10, 2026
5.0
(9)
721
riders
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
4.6
(8)
345
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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5.0
(8)
252
riders
54.1km
02:49
890m
890m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
4.8
(4)
219
riders
54.6km
02:57
1,000m
1,000m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
4.2
(5)
229
riders
70.5km
03:31
1,010m
1,010m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(2)
206
riders
74.7km
03:40
910m
910m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(3)
216
riders
76.6km
03:33
870m
870m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
117
riders
80.6km
04:20
1,290m
1,290m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
4.0
(3)
110
riders
73.3km
04:06
800m
800m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(2)
107
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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Popular around Gwynedd
Road Cycling Routes in Snowdonia
Road Cycling Routes around Bangor
Road Cycling Routes around Llangywer
Road Cycling Routes around Dolbenmaen
Road Cycling Routes around Llanycil
Road Cycling Routes around Bala Lake
Road Cycling Routes around Waunfawr
Road Cycling Routes around Bala
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Road Cycling Routes around Llanddeiniolen
There are plenty of deep steps at the start and us oldies decided to avoid them on the way back.
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Gorgeous area. Be aware the road/trail on the south side (including access to/from Llanymawddwy) are currently closed due to damage from storm Darragh. See https://www.hdcymru.co.uk/our-visitor-sites/lake-vyrnwy/storm-darragh/ for more details.
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Now open everyday 0800 til 1700. Caffi Siabod is at the foot of Moel Siabod in the village of Capel Curig. Serving the local Community as well as walkers, hikers and bikers
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It's well worth the effort to climb to the top of the pass.
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There is a little cafe above the main car park for a coffee and cake after the "gift shop" labelled walks. As usual, Komoot makes the walk easier than using signposts - remember to download to the phone app. Kayaking/canoeing around the lake is only possible for about half of it due to a protected bird sanctuary.
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Gwynedd offers a wide variety of road cycling experiences, with over 700 routes available on komoot. These routes cater to all levels, from leisurely rides to challenging mountain passes, allowing you to explore the diverse landscapes of Eryri (Snowdonia) National Park and the stunning coastline.
Yes, Gwynedd has numerous options for less experienced cyclists and families. You'll find over 160 easy routes. The region features traffic-free paths like the Mawddach Trail, a 10-mile route from Barmouth to Dolgellau, and sections of the Lôn Eifion Cycleway, which offers coastal views and passes through Glynllifon Country Park. The broader Lonydd Glas Network also provides over 50 kilometers of safe, traffic-free paths.
For those seeking a challenge, Gwynedd is home to some iconic climbs. The Llanberis Pass is a renowned 8-mile ascent between the Glyderau and Snowdon ranges. Another significant climb is the Marchlyn Mawr, offering a 5-mile ascent to over 2,000 feet, making it the highest point reachable by road bike in Wales. Routes like the Pen y Pass and Beddgelert from Bangor loop and the Pen y Pass and Marchlyn Mawr climb loop from Llanberis include these demanding ascents.
Absolutely. Many of Gwynedd's road cycling routes are designed as loops, allowing you to start and finish in the same location. Examples include the Glyders, Ogwen Valley & Llanberis Pass loop from Bethesda, which offers stunning mountain scenery, and the loop of Llyn Tegid & Llyn Efyrnwy from Bala, exploring the beautiful lake districts.
Gwynedd's road cycling routes are rich with natural beauty. You'll encounter the dramatic mountains of Eryri (Snowdonia) National Park, serene lakes like Llyn Tegid and Llyn Efyrnwy, and the spectacular coastline of the Llŷn Peninsula. Notable viewpoints include those along the Llanberis Pass, offering vistas of the Glyderau and Snowdon ranges. You can also find highlights like Snowdon Summit (Yr Wyddfa) and Penygadair summit, Cadair Idris, which are visible from many routes.
Yes, Gwynedd's routes often pass by significant historical and cultural sites. The Ffordd Brailsford Way, for instance, includes landmarks such as Caernarfon and Dolwyddelan castles. The Lôn Eifion Cycleway also offers the opportunity to visit Caernarfon Castle. You can also find highlights like Foel Grach summit and refuge, which provides a historical context to the landscape.
The area is highly rated by the komoot community, with an average score of 4.7 stars from over 250 reviews. Cyclists frequently praise the region's diverse terrain, from challenging mountain climbs to scenic coastal roads, and the breathtaking natural beauty of Eryri (Snowdonia) National Park. The variety of routes ensures there's something for every ability level.
Route lengths in Gwynedd vary significantly. You can find shorter, moderate loops like the Drws y Coed from Caernarfon loop, which is about 37 km (23 miles) and takes around 1 hour 40 minutes. Longer, more challenging routes, such as the Cwm Penmachno, Betws y Coed & Nantgwynant loop from Blaenau Ffestiniog, can be over 80 km (50 miles) and take more than 4 hours to complete.
Yes, the Llŷn Peninsula offers stunning coastal road cycling. You can enjoy routes like A loop of the Llŷn Peninsula, which is a moderate 73 km (45 miles) ride, showcasing the undulating roads and picturesque views of Bardsey Island and the coastline.
The Ffordd Brailsford Way is a challenging 75-mile (120km) loop named after cycling coach Dave Brailsford, traversing the heart of Eryri National Park. It features tough ascents and historical landmarks. A popular way to experience it is via the Brailsford Way loop from Caernarfon, which is a difficult 74 km (46 miles) route.
While specific public transport details for each route vary, Gwynedd's main towns and villages, particularly those within Eryri (Snowdonia) National Park, are generally accessible by bus or train. This allows for connections to various starting points for road cycling routes. It's advisable to check local transport schedules for specific routes and bike carriage policies.
Yes, Gwynedd's diverse geography includes picturesque waterside routes along both the Menai Strait and the Mawddach Estuary. The Mawddach Trail, part of National Cycle Network (NCN) 8, is a notable traffic-free route along the estuary. The NCN 8 (Lôn Las Cymru) also passes through Gwynedd, offering views of the Menai Bridge and other scenic waterside sections.


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