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 2018 Fox Antifreeze took place on Sunday 4th March 2018 at Coed y Brenin Forest Park, North Wales. We will announce the date for the 2019 event later in the year.

Sunday 4th March 2018


The Fox Antifreeze

 The 2018 Fox Antifreeze took place on Sunday 4th March 2018. A full event report will be posted to this page soon. Individual ride times have been emailed to finishers, a .pdf of all ride times will be available soon.

Images from the event are available HERE

Ready for the thaw!

The Fox Antifreeze will return to Coed y Brenin on Sunday 4th March 2018. The event is the perfect way to chase away the chills of winter and kickstart your riding year.

The Antifreeze is a non-competitive, staggered start, chip timed, multi lap, mountain bike endurance challenge on the all weather trails of Coed y Brenin Forest Park.

Coed y Brenin

The Uk’s original trail centre provides the perfect base for the event. It’s all weather trails and great tree cover provide protection from the elements while still affording spectacular views of the southern Snowdonian mountains, weather permitting. From rocky track to swooping singletrack, Coed y Brenin offers a fine mix of riding that will challenge and delight. The event is based around the Coed y Brenin Visitor Centre offering all the facilities you might want including a cafe that serves everything from hot drinks and snacks to full meals. There are showers and changing, toilets, bike wash and a well stocked bike shop to cater for all your mountain biking needs.

The route is a hand picked selection of the finest trails that the forest park has on offer. 

The Format

The event is a staggered start which offers a very relaxed atmosphere and helps reduce bottle neck issues, allowing us to include more of that lovely singletrack the Coed y Brenin is famous for.

Riders assemble in the start corral while the event start is open and a start marshal feeds them onto the course. Timing starts the moment you cross the timing point so each riders time is individualised to their ride, accurately recorded by RFID data chip.

The course

Each lap of the course is around 11.5km and riders can elect to ride 1, 2 or 3 laps. You don’t even need to decide beforehand the distance you want to ride, you simply ride the number of laps you wish and our timing system will allocate the time to the correct event distance category.


With riders starting, lapping and finishing right in front of the visitor centre, directly below the cafe balcony there is a real buzz of activity at the event hub and a great atmosphere as riders pass the timing point receiving encouragement from spectators and finishers as they choose whether or not to ride “Another lap?”. 

Wave goodbye to the Winter chills!

The event has seen all weather from glorious sunshine to snow and at this time of year in Wales, anything is certainly possible but what better way to prove your mettle than to take on the challenge of a fine winter’s end trail ride of the highest calibre at the UK’s original trail centre.

There will be a warm welcome, good company, great atmosphere and fine trails to ride. The event has sold out each year since it’s creation and with only 400 places available we expect this year will be no different.

We hope you’ll join us on March 4th for another fun blast around Coed y Brenin to chase away the chills of winter.  


Jr Antifreeze

On Saturday we will hold a Jr Antifreeze event kids non competitive MTB event, free to enter and open to children 8 – 14yrs old accompanied by an adult parent or guardian (who must remain with the child entrant at all times). The course is 7.5km, mainly blue and red grade trail.  Sign on from 10.0am – 11.45am. The course start is open to riders from 10.30 – 12 noon, you are free to begin your ride at any time the course start is open but all entrants must remain accompanied by their parent/guardian at all times during the event.  You can now register for the event, you will find an entry link alongside the main entry on our eventbrite entry page.


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

Antifreeze 2017 Fox Event T shirt Price £20 Order with entry for collection at event


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