Here is my brief overview of the Kenya Bike Odyssey route from bikepacking.com! https://bikepacking.com/routes/kenya-bike-odyssey/
First of all, this is an absolutely incredible route. Diverse landscapes, challenging terrain and a fantastic way to see Kenya.
The official guide says a ride mountainbike over 18 days but I did it on a gravel bike in 12. The route is definitely more suited to mtb and some sections are very rough for hours and hours, especially in the first few days.
Food is easy to find, and easy to resupply daily although options may be very limited in tiny villages but there are western style supermarkets a few times along the way. Also many shops wont open until 9 or 10am. Lunch most days was chapati with either peanut butter or avocado and tomato. Cash is accepted everywhere buy finding an ATM can be difficult, almost nowhere will have card services outside of big supermarkets and resort hotels. Kenya uses Mpesa for payments which is easy to set up and use once you have a kenyan sim card. Food is cheap, camping is cheap, hotels in popular tourist spots are expensive.
You'll see wildlife pretty much everyday. From the bike I saw elephants, giraffe, zebra, gazelle, impala, warthog, hyena, tortoise, baboons, lots of monkeys,a huge range of birds and a bunch more ive probably forgotten about. These arent animals in game parks or seen on wildlife tours, these are wild animals roaming along the roadside. With that said, be careful, especially around sunrise and sunset when everything is on the move and the predators are active.
The GPX itself is a little outdated, some old tracks are now fields, some have just disappeared completely, but a little common sense and you'll find an easy solution to get through. People are nice, always happy to help and the vast majority of the country speaks English. If you haven't cycled in Africa before be prepared to attract attention everywhere you go. Bike culture doesnt really exist in kenya yet so you'll need to be self sufficient in terms of spare parts and working on your bike yourself. Definitely recommend tubeless tires, everything in Kenya is spikey.
I spend several months a year working and cycling in East Africa, but this was my first time doing this particular route. I rode it solo and met a few new friends along the way, Im already considering coming back next year with a few friends to do it again.
There is also a WhatsApp group full of good info and support if youre considering doing the trip! https://chat.whatsapp.com/GxZNaFtnatSHGO9CyPkZ1a?mode=gi_t