The Trek Beast Unchained 2022 - Coed y Brenin

The Trek Beast Unchained 2022 - Coed y Brenin

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From £5.92


Canolfan Ymwelwyr Coed y Brenin Visitor Centre

Coed Y Brenin Visitor Centre


LL40 2HZ

United Kingdom

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Refund policy

No Refunds

Join us for a weekend of MTB adventure at the UK's Original Trail Centre as we let Coed y Brenin's Beast of the leash.

About this event

The Trek Beast Unchained

It's back! Coed y Brenin's biggest and beastliest ride challenge returns on 1st/2nd October to give riders young and old another opportunity to test their skills against The Beast Unchained. Will this be the year you tame it?

Saturday 1st - The Trek Mini Beast Challenge

Sunday 2nd - The Trek Beast Unchained


The Trek Beast Unchained - Sunday

Choose your challenge (25km/36km):

(scroll down for information on the Mini Beast Challenge kids event)

The event is a staggered-start MTB challenge ride with emphasis on fun and participation, offering good quality trail-riding, including some singletrack trails of a more technically demanding nature but with two distance options in order to give participants the opportunity to select a route that is a suitable challenge for their physical endurance capabilities.

Skill level? - The event is suitable for riders who can ride confidently on red graded trail and are able to tackle some black graded sections.

Fitness level? – There is a 25km and 36km route both with a significant amount of climbing and descending. Select a route distance that offers suitable challenge for your personal ability.

Age? – You must be aged 16 years or over on the date of the event to ride either route distance, there is no upper age limit. Riders of 14/15years may ride the event accompanied by an adult parent or guardian. Terms apply, please read the additional information below.

Bike? – A well maintained and serviced MTB in good shape and suitable for tacking red or black trails. Any decent hardtail will do, full suspension might be desirable if you want a smoother ride as its rocky in places. Your brakes must work well and be able to stop you on steep slopes, any quality set of hydraulic disc brakes will be just fine.

E-Bikes? – E-bikes may be used but must be UK legal. E-bikes are required to start as part of the Ebike start wave.

Helmet? – A good-quality, well-fitted helmet (to BSEN1078 or Snell B90) is a mandatory requirement to enter any of our events. It’s also just common sense. We also recommend wearing a pair of full finger cycling gloves and some trail friendly knee protection. There are many styles available today that can comfortably be worn on longer rides and offer a significant degree of additional protection in a fall.

Clothing? - Dress for the conditions. It’s a good idea to check the forecast but also bring plenty to cover all eventualities as things can change on the day.

Weather? - The trails at Coed y Brenin are all-weather and being in Wales, Coed y Brenin is used to seeing a drop or two of rain so there is very little in the way of weather that will prevent the event from running. Any changes to the event, event start times or course route/status will be publicised either on the event webpage and emailed to participants or as notices at event sign on.

When? - The E-Bike event start window will open from 9.30 to 10am. Regular bikes from 10 to 11am. There will be a course cut-off time for the 36k route. Riders who do not making the split point by this time must finish at 25km. If you intend to attempt the longer route and are concerned about time it is best to try to start as early as possible in your start wave. The cut-off time for the long route will be published closer to the event date.

The Format – A Staggered Start

The event is a staggered start format, riders are individually timed with timing starting the moment each rider crosses the start line. Riders may start at any point during their allocated start wave opening times. The staggered start format offers a more relaxed feel to the event and allow better opportunity to enjoy the many sections of quality singletrack trail that the route offers.

The routes….

Beast Mode (25km)

A shorter loop but still ample challenge for most, at 25km it’s a slightly less beastly beast to tackle. This event provides a good opportunity for those looking to try their first MTB endurance challenge or who are looking to gain experience on route to tackling longer/tougher endurance challenges in the future.

Mega Beast (36km)

Our longest distance challenge builds on Coed y Brenin’s best known and most challenging route “The Beast”, reworking and reimagining to make an epic mash up of some of Coed y Brenin’s best trails with a few extras from off the regular route maps.

So what is the event?

The event is brought to you by Dyfi Events, the creators of the Dyfi Enduro alongside their brand partners. The Beast Unchained unleashes the best trails, old favourites and a few new faces from in and around the UK’s Original Trail Centre, Coed y Brenin. It’s an epic mix of rugged rocky MTB trail fused with lashings of superb, flowy forest singletrack and a hearty dollop of Snowdonian mountain ambiance. An awe-inspiring epic mashup of some of Wales’s best trail riding to challenge and delight in equal measure.

The format is a staggered start, timed, non-competitive MTB challenge ride.

There is a separate E-bikes event with a separate start wave. To enter, your e-bike must be a UK road-legal motor assisted electric pedal bike. No modified, chipped or derestricted bikes are permitted, likewise any bikes upgraded via a kit that have throttle operation are not permitted. All E-bikes must be declared on entry and must depart during the declared E-bike start wave times.

The event is open to riders aged 16 years and over.

Younger riders of 14/15 year olds are also permitted to enter the event so long as they are accompanied by an 18+ parent, guardian or allocated responsible adult with consent from parent or guardian. An additional waiver is required, and the responsible individual must agree to remain with the young person they are accompanying at all times during the event.

Mini Beast MTB Challenge - Saturday

For younger riders (4yrs to 15yrs) we have the Mini Beast Challenge.

The event is not-timed, but an open challenge ride offering a routes of different distances so you can choose a challenge that best fits the ability of the young rider.

All children must remain accompanied at all times on the ride by an adult parent or guardian aged 18+. All children who complete their challenge will receive a small reward in recognition of their efforts.

Parents/Guardians can register child(ren) for the event in the same way as for entering the main event.

Younger or inexperienced riders are able to ride the (blue graded) loop 2 of the Minortaur trail (5km). The other route is around 14km and recommended for children with more experience who can confidently tackle some tougher sections of red graded trail as it contains some more challenging trail sections.

IMPORTANT - ALL CHILDREN MUST REMAIN ACCOMPANIED BY AN ADULT PARENT OR GUARDIAN (age 18+) AT ALL TIMES WHEN ON COURSE and will be required to accept our liability waiver stating this on entry.



There is a charge to park at Coed y Brenin and a number plate recognition system is now in operation. Day parking is £7. No overnight parking is permitted. Full parking information can be found at

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