| Rank | Climb |
|---|---|
|
Bwlch-y-Groes from Llanymawddwy
3.4 km
11.3%
542
|
|
|
Dinorwig Surge Pond from Brynrefail
8.4 km
6.6%
514
|
|
|
Electric Mountain / Marchlyn Mawr from Brynrefail
7.5 km
7.1%
508
|
|
| 4 |
Electric Mountain / Marchlyn Mawr from Tregarth via Sling
9.1 km
6.1%
468
|
| 5 |
Dinorwig Surge Pond from Tregarth via Sling
10 km
5.7%
463
|
| 6 |
Craigymerwydd from Arthog
1.6 km
14.2%
365
|
| 7 |
Bwlch Pen-y-feidiog from Llanuwchllyn
10.6 km
4%
356
|
| 8 |
Stwlan Dam from Tanygrisiau
3.3 km
9.4%
340
|
| 9 |
Milltir Cerrig from Llandderfel
7.8 km
4.7%
332
|
| 10 |
Dyfi Forest from Aberangell
2.1 km
11.2%
325
|
In the region Gwynedd cyclists can find 227 interesting climbs between 2 m and 654 m above sea level. Bwlch-y-Groes from Llanymawddwy is the toughest ascent with a difficulty score of 542. Climbs have an average length of 2.2 km and 106 m of total ascent.
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