Might be worth the OP checking whether there are any "Adventure Tour companies" in Colombia. If so, they'd probably have suitable spare bikes for hire.
I spent 10 days riding coast-to-coast across Costa Rica with 50 others, on a tour organised by the Mencap charity. It was all off-road, except for a few miles on the Pan-American Highway, where we had a Police escort !!!
I just took helmet, clip-on pedals/shoes and saddle. The bikes were middle of the range Trek.
I spent 10 days riding coast-to-coast across Costa Rica with 50 others, on a tour organised by the Mencap charity. It was all off-road, except for a few miles on the Pan-American Highway, where we had a Police escort !!!
I just took helmet, clip-on pedals/shoes and saddle. The bikes were middle of the range Trek.