Abergwesyn Valley – Abergwesyn Pass loop from Trallwm

Bike touring routes & trails

Abergwesyn Valley – Abergwesyn Pass loop from Trallwm

Hard

riders

Abergwesyn Valley – Abergwesyn Pass loop from Trallwm

02:11

31.2km

490m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Last updated: September 24, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Nant Irfon National Nature Reserve

Elenydd SSSI

Waypoints

Start point

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3.65 km

Abergwesyn Valley

Highlight (Segment) • Gorge

One of the most beautiful stretches of road in Wales or maybe the world, this valley from Abergwesyn to the well-known and much feared Devil's Staircase is an incredible place …

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7.41 km

Devil's Staircase Climb (Abergwesyn)

Highlight (Segment) • Trail

Deep in the wilderness lies a hill that needs no introduction, the Devil’s Staircase, and it’s the opportunity to tackle this beast that will lure many to sign up for …

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9.25 km

Devil's Staircase Gravel Climb

Highlight (Segment) • Cycleway

An alternative climb up the infamous Devil's Staircase, but up the gravel fire road.

Gradients are more gentle than the road climb and the surface is good enough for slick tyres in good, dry conditions, so no gravel bike required!

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12.7 km

Abergwesyn Pass

Highlight • Viewpoint

Absolutely beautiful, even in the cold and wet!

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12.8 km

Wolf's Leap, River Irfon

Highlight • Gorge

Wolf's Leap is a deep pool along the River Irfon. It is accessed via a small path cut into the rock. At this point the river cuts through a narrow …

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16.0 km

Irfon Valley Road

Highlight (Segment) • Cycleway

A beautiful narrow road that winds up the Irfon valley from Llanwrtyd to Abergwesyn.

This is a quiet valley, often with its own microclimate.

On a good day in the …

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31.2 km

End point

Way Types & Surfaces

Way Types

29.1 km

2.12 km

Surfaces

17.5 km

11.6 km

2.12 km

Elevation