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Mountain Biking in Mayo

Mayo is one of the wildest MTB counties in Ireland. The Nephin Beg range, the country around Westport, the Great Western Greenway and a stretch of Coillte forestry through the Atlantic uplands. This is the honest guide.

Mayo · Ireland · by David English (@d.emtb)

I’m David. I’m 13, I live in Clonmel, and Mayo is one of the parts of the country I’ve only ridden a little of. The riding here is wild and the country is some of the most beautiful in Europe. This is the honest Mayo MTB hub for visitors and locals.

Why Mayo is one of the most distinctive MTB counties

Mayo is the third-largest county in Ireland by area. It contains the Nephin Beg range (one of the most remote upland areas in Western Europe), Croagh Patrick, the country around Westport and Achill Island, plus a long stretch of Atlantic coastline. The county also hosts the Great Western Greenway, the country’s longest off-road cycling route. The MTB picture in Mayo combines wild upland (much of it walking-only on the summits) with Coillte forestry, plus the greenway as a flat off-road option.

The Great Western Greenway

The Great Western Greenway runs 42km between Westport and Achill Sound, following the former railway line. It’s a flat, off-road, well-surfaced trail that’s ridden mostly on hybrid and gravel bikes but works fine on a mountain bike. It’s not technical MTB — it’s a long, scenic, accessible route through some of the best Atlantic scenery in the country. Use it as a recovery day, a family day, or as the connecting route for a multi-day trip. The greenway is open to the public free of charge and bike hire is widely available in Westport and along the route.

Westport as a base

Westport is the natural base for a Mayo MTB trip. The town has accommodation in every category, a strong cycling culture, multiple bike-hire and service options, and direct access to the greenway, Croagh Patrick country, and the Coillte forestry around Brackloon Wood and the wider south-Mayo area. From Westport you’re 25 minutes to Croagh Patrick, an hour to Achill, and 90 minutes to the deeper Nephin Beg.

Croagh Patrick — walking country, not MTB

Croagh Patrick (764m) is Ireland’s most famous pilgrim mountain, west of Westport. The standard ascent is a walking trail on landowner-agreed access — mountain bikes are not part of that access framework. Don’t ride Croagh Patrick. The surrounding forestry and the lower country around the mountain give the legitimate riding ground. Treat the Reek as walking-only and ride around it, not up it.

The Nephin Beg range

The Nephin Beg range covers the heart of north-west Mayo. It’s the most remote upland area in Western Europe — the Wild Nephin Wilderness Area is the first official wilderness area in Ireland, jointly managed by Coillte and the National Parks & Wildlife Service. The high peaks are walking country with restricted MTB access. The lower Coillte forestry on the edges of the range provides the legitimate riding. Going into the deep Nephin needs proper preparation, navigation skills and self-sufficiency — there’s very little phone coverage and almost no infrastructure.

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Achill Island

Achill is the largest island off Ireland and connected to the mainland by a bridge. Croaghaun (688m) on the western end has some of the highest sea cliffs in Europe. For MTB, the road and gravel options around the island are spectacular; the upland and the cliff edges are walking country. The Great Western Greenway terminates here at Achill Sound. Use Achill as a destination day on a Mayo trip, not as a dedicated MTB venue.

Castlebar and the central Mayo forestry

Castlebar is the county town and an alternative base for a Mayo trip if you want to be more central. Coillte has forestry around Castlebar and across central Mayo — the practical day-to-day MTB ground for local riders. Less spectacular than the Atlantic west of the county but reliable year-round.

Ballina and the north-Mayo coast

Ballina sits in the north-east of the county. The north Mayo coast around Ballycastle, Belmullet and the wider Erris peninsula is wild and exposed. For MTB the Coillte forestry on the lower slopes is the practical ground; the upland and the cliff country is walking. North Mayo is some of the least-visited country in Ireland — if you want quiet, this is where you go.

Getting to Mayo for an MTB trip

  • From Dublin: 3 hours to Westport via M4/M6 and N5.
  • From Galway: 1 hour 30 to Westport.
  • From Knock airport: 1 hour to Westport — the closest landing.
  • From Cork: 4 hours — a long drive.
  • From Belfast: 4 hours — doable as a long-weekend trip.

Trail types in Mayo

Mayo MTB is overwhelmingly natural / fire road / wild ground. The Great Western Greenway is the flat off-road option. The Coillte forestry around the county gives the more traditional MTB days. There isn’t machine-built singletrack at the trail-centre scale here. The right bike is a capable hardtail or a 130-150mm full-suspension trail bike. A gravel bike also works for the greenway and the central Mayo forestry.

Bike shops in Mayo

Westport has the strongest bike-service cluster in Mayo, partly because of the greenway. Castlebar and Ballina have shops too. Bike hire is widely available in Westport. As anywhere, phone ahead and confirm MTB service if you’re after specialist work — some shops are greenway-hybrid-focused.

When to ride Mayo

May through September is the realistic prime window for serious MTB days. The greenway is rideable year-round in any weather — it’s a flat tarmac-quality surface and drains well. The upland forestry is wetter; October through March needs proper kit and a real weather window. Mayo weather is Atlantic and persistent; check Met Éireann before any day in the Nephin or on the Atlantic-facing slopes.

Mayo as a west-coast MTB trip leg

The classic Wild Atlantic Way bike trip works Galway → Mayo → Sligo → Donegal. Mayo is the middle leg and one of the most rewarding for variety — the greenway gives you flat scenic mileage and the Nephin gives you the wild end of the spectrum. Pair with my Galway page and Donegal page for the full west-coast picture.

Mayo MTB — the honest take

Mayo is wild, beautiful, and short on signposted MTB infrastructure. It’s a trip you do for the setting, not for the trail centre. The Great Western Greenway is a unique national asset and worth a day on its own. Westport is one of the best small towns in Ireland to spend a few nights, with strong cycling culture and good food. Don’t come to Mayo expecting Ballyhoura; come expecting the Atlantic coast, the Nephin in the distance, and long days through country that hasn’t changed in centuries. Compared to my home Tipperary riding, Mayo is wilder, more weather-driven, and the greenway gives you something Tipperary doesn’t have.

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