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Distance: Approx 80KM on Day 1 & 62KM on Day 2
Minimum Age: 17+
Date: 14th & 15th February 2020
Early Bird Entry Fee: Ksh 20,000 / $200 / £160

Extreme, adj. exceeding what is usual or reasonable.

Held over two days, the Extreme combines both the Hardcore and the Roller Coaster Classic. This event will challenge the fitness and technical abilities of seasoned mountain bikers and elite teams.

Covering approx. 80km on Day 1, riders will face an elevation gain and loss of nearly 2000m with fast technical sections and single track all on Borana Conservancy. Day 2 follows with the Roller Coaster, a 62km race, that has become synonymous with the 10to4.

The Extreme is not for the faint of heart. If in doubt over either your endurance capabilities or technical riding prowess perhaps the “Classic or Rush” is the answer? You must be a seasoned mountain bike rider to take part.

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Distance: 62KM
Minimum Age: 14+
Date: 15th February 2020
Early Bird Entry Fee: KSh 16,000 / $160 / £130

Held on Day 2, the Classic is an experience that has become synonymous with the 10to4. Starting at nearly 3000 meters, (10,000 feet), on the northern slopes of Mount Kenya, riders will descend some 70km over demanding terrain, through indigenous forest and wide open plains, abundant with wildlife, down to the Ngare Ndare Forest at 1940 meters, (6400 feet) and then onto Borana Conservancy, finishing at Borana Race Village.

The ride is not, however, all downhill, featuring some vicious climbs when the body least wants it. Estimated ride time between 2 and 6 hours depending on ability. A high level of fitness and experience is required.

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Distance: 56.6KM
Minimum Age: 14+
Date: 15th February 2020
Early Bird Entry Fee: KSh 16,000/ $160/ £130

Running concurrently with the 'Classic' on Day 2, 'The Rush' is a less arduous 56km ride but will still provide exhilaration for mid-level cyclists and those seasoned mountain bikers who spend more time in their office chairs than is good for them.

Estimated ride time between 2 and 5 hours depending on ability.



Distance: 39KM
Minimum Age: 10+
Date: 15th February 2020
Early Bird Entry Fee: KSh 10,000/ $100/ £80

Running concurrently with the ‘Classic’ and ‘Rush’ on Day 2, the Slide is a gently undulating and pleasant ride, suitable for all. Estimated ride time for this 39km route is between 1.5 to 4 hours, depending on ability.

1st, 2nd and 3rd place prizes will be awarded to two categories of competitors: the under-18 riders and over-18 riders.

Children between the ages of 10 and 12 must be accompanied by an adult at all times during the event.

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Distance: TBC
Minimum Age: 17+
Date: 14th February 2020
Early Bird Entry Fee: KSh 8,000

Enduro is a type of mountain bike racing where the downhills are timed, and the uphills are not. Riders are timed in stages that are primarily downhill, with neutral "transfer" stages in between. The transfer stages usually must be completed within a time-limit but are not part of the accumulated time.

Enjoy the trails, have fun, meet people, ride great technical trails. Be happy to take responsibility for yourself and anything that happens on the Trail. Bicycles must be robust and in good working order. Tubeless tires pretty much a must. Come prepared with: Spares, mini pump, multi-tool, tubes, zip ties, puncture repair kit, phone, spare hanger, tire levers, first aid kit, water, food & snacks…MUST have experience on technical trails.

Come for a real “adventure” ... It’s going to be a great ride! Keep the rubber side down!!

For more information email



Date: 15th February 2020

At the 2020 Tropic Air 10to4, we are planning to introduce a new eBike class to the event. We are currently finalising the details of what this might look like but if you are a keen eBiker and would like to find out more about how you can get involved in the 10to4 please email us on with the subject line 'eBike - more info please'.

MINI 10to4
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Braeburn MINI 10to4

Date: 16th February 2020, 7am race briefing, 7.30am race starts
Entry Fee (KSh): 2,000 (4-6 yrs) and 2,500 (6-12 yrs)
Sponsorship Form
Info Sheet

Held on the Sunday, the hugely popular children's races will take place at Borana Race Village. Race briefing starts at 7am.

Pre-entry only - entries or changes on the day will NOT be accepted.

  • Race 1 - open to 4-6 year olds over a 2km obstacle course
  • Race 2 - open to 6-8 year olds over approx. 4.5km
  • Race 3 - open to 6-12 year olds over approx. 9km
  • Race 4 - also open to 9-12 year olds over approx. 13.5km

Please note, for a child to take part in a specific race they must be within the age range specified on race day.

Once again we will also be running an inter-school competition so please be specific about which school your child attends as points will be given to all competitors depending on placings and the ‘winning’ school awarded at Prize Giving on Sunday 16th.

Finally, don’t forget that there is a prize for the top fundraising courtesy of Tropic Air – a flight around Mount Kenya.

If you wish to ride with your child, please complete a separate registration form and select ‘adult rider supporting mini 10to4 cyclist’ and we will class you as riding 'hors concour'. Your age will give you away!

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Minimum Age: 10+
Date: 14th February 2020

Horse Riding @ 10to4 will take place on the beautiful savannah of Borana Conservancy.

Regular pre-riding will be required so that you are fit enough to manage the horses and enjoy the ride. Applicants need to be intermediate level (able to control the horse in walk, trot, canter).

Registration for Horse Riding @ 10to4 won't open until the middle of November 2020. If you're interested in being one of the first to know when entries are open please drop an email to with the subject line 'Horse Riding @ 10to4 - Interested' and we will be in touch in due course.