2023 Tropic Air 10to4 Mountain Bike Challenge

Brought to you once again by the Mount Kenya Trust



The 2023 event promises to be better than ever, with great routes, spectacular scenery, lots going on at Borana Race Village and, of course, the ever-present possibility of coming face-to-face with some seriously amazing wildlife!  What's more, this year we have a brand new race combo on offer - the Wild - which, by popular demand, will run alongside the Extreme as a two-day challenge. It will feature a new route entirely located in the striking landscape of the Borana Conservancy and give those riders not feeling quite up to the rigors of the Extreme the ride of their lives!
Registration will open soon, but in the meantime, why not take a look at the 2022 Gallery and remind yourself why the Tropic Air 10to4 Mountain Bike Challenge is the best weekend of the year!

Feedback from 2022 Participants:

"Please pass our thanks to ALL the team! It was a fantastic set of courses, well marked, well placed water stops, good to see the potatoes and salt! Rangers were everywhere we looked and we felt very well looked after. Very many thanks to all and we look forward to next year."

"Fantastic event - in amazing surroundings. Big thanks to the organisers, those marshalling, route planners and markers, rangers, water/food point hosts - we were treated royally! Until next year for another Extreme 10to4."

"I believe we are incredibly privileged to be able to ride on the properties …. The organisation, the routes, the route marking, medical cover, volunteers and the the rangers keeping us safe were all first class.  I am so hyped for the event next year .... Let’s raise more loot for the mountain next year!  Asante sana sana."

"Many thanks to the organizers!  It was a great first 10to4 experience for me. Nice weather, beautiful landscapes and amazing stops in Borana."

"We enjoyed our first 10to4 as riders - thank you everyone supporting the event, marking the trails (twice), sweeping, repairing bikes and bodies, ‘ranging’, controlling, scoring and all the other activities required. Massive effort there, really well done."

"THANK YOU for an incredible event. It was our first time and we were blown away by the route, the organization, the water points, safety considerations, the vendors and - most importantly - all of the volunteers! It was wonderful to know that all of the proceeds went to conserving the Mt Kenya area because of the hard work and generosity of the volunteers and sponsors. We are grateful for the experience and can’t wait to come back next year with the whole family!"

What a fantastic three days we all had - roll on 10to4 2023!!

About the Cause

The 10to4 Mountain Bike Challenge, now in its 21st year, raises funds for Mount Kenya Trust (MKT), a Kenyan based charity that aims to drive collaborative action for the sustainable management of Mt Kenya’s biodiversity and natural resources through partnerships with government, communities and civil society.

Since the 10to4 was established in 2002, over $600,000 has been raised to support the MKT in their work. This includes planting more than half a million trees, building and maintaining a 14km elephant corridor through farmland, two elephant underpasses, returning over 450 hectares of bare land to indigenous forest, tree nurseries nurturing hundreds of thousands of seedlings, and helped 50,000 Kenyans with health care and thousands of children understand conservation better. For more information on Mount Kenya Trust please click here.

Become a 10to4 Sponsor

A big shout out to our confirmed 2023 Title Sponsor Tropic Air, and Platinum Plus Sponsor Dormans Coffee.  Their generous support and that of the Gold, Silver and Water Stop sponsors along with the contributions made by all the Friends of Mount Kenya Trust means that 100% of the entry fee and sponsorship money from competitors goes directly to fund the important work of the Mount Kenya Trust.  Please contact us if you'd like to find out how you could join this growing band of heroes for 2023.


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c/o Mount Kenya Trust
PO Box 690, Nanyuki 10400, Kenya


0793 280294 (office hours)