Tajikistan’s Pamir Highway is one of the world’s most famous routes for the adventurous bicycle tourist. Its stunning scenery is rewarding, and the challenging terrain can be a true test of your endurance. Cycling the Pamir Highway AKA the M41 in Tajikistan and Kyrgyzstan is known as cycling the “Roof of the world” with good reason – it’s the second highest highway in the world. Pamir Highway go over the very highest passes, however as it passes from Murghab to Osh Kyrgyzstan height while crossing Ak Baital pass 4660m and piercing straight through some bleak but beautiful high altitude desert landscapes.