Does the Halfbike have brakes?
Yes, the Halfbike 3 has a front drum brake integrated into the four-speed hub. It is pretty much maintenance-free, and its performance remains consistent over time and in all weather conditions.
Do you have any stopping distances? for example 2 metres at 5 kms and hour or 2.8 m at 10 kms an hour.
If an average person rides roughly with 20km/h the stopping distance would be around 7-8 meters.
Hope that helps :)