North Wales 400 Bikepacking Route

The inaugural North Wales 400 bikepacking event will take place during Summer 2023. It will feature a "group finish" and finish line celebration. Riders will be free to start the event when they like but must finish before the official end time in order to be listed as a finisher. The event will follow the rules listed below.

To register interest, please email Tom at and you will be contacted when the dates of the event are announced (in the near future). I'm really excited about this event and I intend to run it every year with slight variations on the route below.

Distance 412 km

Elevation gain: 10,800 metres

GPX file download

Link to photos

This is a bikepacking route around North Wales, designed by Tom Bruce as a training route for the Highland Trail 550. It is a difficult route, with over 10,000 metres of climbing in just over 410 km. The route is designed to start and finish in Mold, Flintshire, which is very accessible but it can be started and finished at any point on the loop. The loop is to be ridden anticlockwise.

The intent is to ride the route as fast as you are able while adhering to the set of rules listed below. You are expected to navigate the unmarked course entirely on your own. There are no waymarkers or checkpoints on the course, only a downloadable gpx file. Map navigation is not part of the challenge, so for efficiency and safety a GPS unit is recommended.

It is an unofficial challenge that is not sanctioned in any way, with no organisation, and no support. All this website provides is the route, the rules, a suggested start time, and a list of riders who have completed the challenge. A maximum time limit is set at 72 hours for your ride to be included in the register of successful completions.

Highlights of this stunning route include:

  • The Clwydian Range and Dee Valley AONB

  • Many of the most beautiful lakes in Wales, including Llyn Brenig, Llyn Alwen, Llyn Vyrnwy

  • Trails through the UNESCO World Heritage Slate Landscape of Northwest Wales

  • Snowdonia, including an ascent of Snowdon

  • The Snowdonia coast between Cricceith and Porthmadog

  • 5 world class mountain biking trail centres at: Penmachno, Gwydir Mawr, Coed y Brenin, Dyfi Forest, Llandegla

  • Bwlch y Groes, the second highest road pass in Wales

  • The Berwyn Range

The route takes you over some very challenging terrain including an ascent to the top of Snowdon, at an altitude of over 1,000 metres, which can provide a very challenging climate. There are hike-a-bike sections and some technical descents, so the use of a mountain bike is recommended. Please take some cash to put into the honesty box at penmachno trail centre as you pass - it helps funds trail maintenance.


  1. Complete the entire route, under your own power - no drafting

  2. Be completely self-supported throughout the ride - absolutely no support crews, absolutely no gear sharing

  3. Only use commercial services that are available to all challengers - no private resupply, no private lodging

  4. If you have to leave the route, you must rejoin it at the exactly same spot

  5. No caches of any kind

  6. No third-party sag-wagon offering an easy bail-out option

  7. No pre-arranged support, which means before you begin your ride - e.g. booking a B&B

  8. No travel by any motorized means during your ride - by all means do so if necessary, but understand if you do your attempt is over

  9. Gear - nothing required, nothing prohibited

  10. The Snowdon Voluntary Cycling Agreement must be adhered to, so plan your attempt accordingly: If you arrive at Llanberis at the wrong time to attempt Snowdon and don't wish to wait for an allowed time of day, you could divert via the telegraph valley route to continue your ride, however your attempt will not be counted as a completion

  11. The Llandegla forest trails should be ridden only during trail centre opening hours unless by pre-arrangement with One Planet Adventure ( An alternative route from the Offa’s Dyke bridleway on Ruabon Moor, to the far side of Nercwys Forest is available here if you arrive at Llandegla forest when the trail centre is closed.

  12. While riding any of the trail centre routes, temporary closures or diversions may be in place. Please follow these diversions and rejoin the official route at the first opportunity, your attempt will be valid. Please email tom ( with any news of diversions on the route.


Tom Bruce: 49 hours, 58 minutes, 40 seconds