Nothing is truly waterproof. If a component or vehicle is fully water proof, this would mean that it is also 100% non-serviceable. Instead, parts are considered water-resistant with a particular rating called ingress protection (IP). This rating determines the amount of dust/water exposure the item in question can be subjected to without running into any issues.
Superhuman bikes are rated at IP65. In short, they are protected against dust ingress and they are able to resist the penetration of water to some degree but not entirely (low pressure water only). Riding in the rain and washing your bike won't cause any damage but the electronic components are not recommended to be exposed to water for long periods of time.
Keep in mind that IP ratings can be very subjective. We suggest to stay away from water entirely. If you ever need to wash the bike, a quick shower and wipe down should do the trick.
Note: The bike can only get wet when the battery is securely inside the battery housing.
For more information on our bike's IP ratings and how to best care for your bike in wet conditions click to visit our article: Can you ride an electric bike in the rain?