The Mount Kenya Trust 10to4 Mountain Bike Challenge is the main fundraising event for the Trust. It has been held annually since 2002 and continues to grow each year. Hosting approximately 250 riders of all abilities from the professional to amateurs and children, there are races for all. Distances range from 90km in the Hardcore on Day 1 to the 36km Slide on day but take their name ‘The 10to4’ from the drop in altitude from nearly 10,000ft at the top of Kisima Farm down to 4,000ft on Borana Ranch. The next 10to4 will be in February – go to for all details.