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No rear rack required

PassBox is a cycling safety study that measures how close cars get to your bicycle.

PassBox attaches to your bike and uses the same precision ultrasound technology used by police in the USA to detect passing events.

After collecting data in Melbourne with Melbourne BUG, PassBox is now looking for volunteers in Perth. 

We need you to volunteer to put PassBox on your bicycle for two weeks. PassBox records all of your usual cycling and helps us understand what makes cars pass close. 

Help make cycling safer in Western Australia, volunteer now.