Tropic Air 10to4 Mountain Bike Challenge 2026

This year, if you want to register multiple participants, you can do so on one form rather than having to start again for each person as has been the case previously. Simply select the number of participants you wish to register in each race under quantity (up to a maximum of 20 in total) and then click/tap on Checkout. You'll still need to enter details for each participant, but there'll be a single payment at the end. You can pay by card when you finish the form, or offline by MPesa (Paybill number: 329959, Account number: your name), but please make sure you click/tap the 'Place Order' button before leaving the site. Then head on over to the Add-ons page to book bike drop, camping, emergency cover, and everything else you'll need for the perfect weekend.

To register you'll need contact details, date of birth, passport/ID number, insurance and emergency…