For $7 a day pre-book your helmet and keep your head safe.
HOW TO DETERMINE YOUR HELMET SIZE:
Take a soft measuring tape and wrap it around your head about 1 inch above your eyebrows and ears. Most helmets are measured in centimeters, so unless you love calculations, measure your head in centimeters.
For example, if you measure the circumference of your head and it is 56cm, you will wear a 56cm helmet or Medium (55-58cm) depending on the helmet’s size scale.
Don’t have a soft tape measure? Take a piece of string and wrap it around your head and then measure the string.