The Fox Antifreeze

The Antifreeze is a multi lap, chip timed, staggered start mountain bike endurance challenge staged at Coed y Brenin Forest Park.  The 2017 Fox Antifreeze took place on Sunday 26th February 2017 at Coed y Brenin Forest Park, North Wales.

The Fox Antifreeze

This event took place on Sunday 26th February 2017

Rider Times are now available for this event HERE


For a taste of what’s on offer you can read Dan Hearn Pinkbike article on the 2016 event HERE



The Fox Antifreeze is a mountain bike timed lap endurance challenge held on the trails of Coed y Brenin Forest Park, North Wales. The event brings together a selection of the forests finest trails to challenge and delight those brave enough to chase away the chills of winter at the UK’s best known and best loved trail centre (voted UK’s No.1 trail centre by Singletrack Mountain Bike Magazine readers in 2016).


The event takes place on Sunday 26th February and offers a very relaxed format for riders with staggered start where riders can assemble together in the start area and begin at any time that the start remains open. Riders are free to start when ready and ride with friends. The start will open from 10.30am and remain open for around 1 hour. Riders may assemble and start at any time that the start is open.

Entrants get the option to ride 1, 2 or 3 laps of the 12.5km course, you don’t have to choose before you ride, just set out and complete as many laps as you feel and your timing chip will record the number of laps you have chosen to ride.

The event is now in it’s third year and has sold out the previous two. With only 350 places available we expect that this year will be no exception.

G0053659The Antifreeze is a great event for anyone looking for a winter challenge goal and it’s staggered start format with none of the jostling and pressure of a large mass start offers a more relaxed and accessible entry for any newcomers to mountain bike endurance challenge events.

Jr Antifreeze

On Saturday 25th there will be an Antifreeze children’s event that will be free to enter and open to children 8 – 14 year of age that are accompanied by a parent or guardian (18yrs or older). The event is a non timed challenge and will feature a single 9.5km loop.

Sign on for the children’s event will be open from 09.30 – 11.00 am with the course start open from 10am to 11am.
The event is free to enter with children participating each receive an Antifreeze number board and Fox bottle to reward their efforts.



The course is a hand picked selection of the forest parks trails, a mix of blue, green and accessible black trails that will offer challenge enough for experienced riders yet be accessible enough for newcomers. The forest park’s network of singletrack trails offers good weather cover and all-weather trails to ensure the event will offer fine riding even if winter decides to throw its worst our way.

_DSC1930Finishers will receive a Fox Antifreeze logo pint glass to reward them for their efforts. You can also buy a stylish memento in the form of a Fox Antifreeze event T.



Coed y Brenin Forest Park

Coed y Brenin provides a fantastic location for the event with world class, all-weather trails and a visitor centre with all the facilities winter riders could possibly need. On site there are hot showers, toilets and changing and a Cafe serving everything from snacks and drinks to full meals. Spectators and supporters can keep themselves warm with a hot chocolate while overlooking the start/lap/finish area directly in front of the cafe/visitor centre building.

The centre also has a well stocked bike shop , bike wash and plenty to do for all the family including kids play area, walking and running trails.


What you’ll need

You’ll need an MTB in good working order plus clothing suitable for the weather conditions. Helmets are mandatory at our events and you will want to carry a minimum of a puncture kit, spare tube, pump and tools in case you should get a puncture as the trails are rocky in places at Coed y Brenin.


We always recommend that riders pack enough food and hydration for their intended distance but we also provide a well stocked feed station on the lap point where riders can stock up on flapjack, cake, sausage rolls and other delights to keep them fuelled for the duration of the ride.



Any good quality MTB will be fine for this event, be it rigid, hardtail or full suspension, 26″, 27.5″ or 29″, plus bike, fat bike or plain old regular flavour (Sorry, no eBikes. See below). It doesn’t matter so long as its in a good functional condition, fits you and you are comfortable riding it.

PLEASE NOTE: eBikes, motor assisted pedal mountain bikes are currently NOT PERMITTED to take part in this or any of our other events. This is not due to any resistance we have to this type of bike but because of restrictions in the terms of our events public liability insurance. We will continue to investigate and review options with insurers and hope to find a way to offer something for ebike riders in the future. Currently, for safety and insurance reasons, any rider attempting to take part in one of our events on a motor assisted bike will be disqualified and removed from the event.



Entry opening dates will be announced shortly and places will be available through our online entry partners, we’ll announce the entries opening date as soon as it has been finalised so keep an eye on our social media ( or ) or check this page for updates.


What riders said:

“Another great event, more of this please!” – Duncan Adkins

“Amazing Experience!!” – Ross Bull

“Lovely day on the bikes. Really enjoyed the descents too!” – Hannah Liggins

“Fab, fab fab! Thank you.” – Melanie Booker



 "A great day's riding on great trails" - Richard Jones 

Antifreeze 2017 Fox Event T shirt


Price £20.00

Any ordered Tshirts that were not collected at the event will be posted on.


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