Traffic in Bangkok Near MBK Centre Thailand South East Asia. Motorbikes are ubiquitous in Thailand, but helmets are not. Activists aim to tackle a problem that claims thousands of lives. Thailand ranks worst in the world for motorbike and two-wheeler casualties, with more than 11,000 motorbike drivers or passengers dying annually. Official statistics suggest such incidents account for 70% of the country's road fatalities. Many die because they don't wear a helmet. According to a Motorcycle Safet