The roads are indeed super dangerous in my opinion (I rented a scooter once and truly feared for my life when huge buses lost their patience and overtook me dur

The roads are indeed super dangerous in my opinion (I rented a scooter once and truly feared for my life when huge buses lost their patience and overtook me during switchbacks, after that experience only cars!) and additionally you really need to be in amazing shape to bike there - steep climbs everywhere, under a hot sun.