25kph is a meandering speed for an adult on a road bike. 30kph is quite common and 35kph isn't unusual. I regularly ride paved commuter trails with bikes doing all of those speeds and it really isn't a problem.
The idea that a 10kph speed differential between vehicles is a problem doesn't make any sense considering you have a 25kph speed differential with stationary objects on your commute. Or 50kph if you consider two 25kph bikers passing each other.
It's really a non issue. 25kph is an unreasonably slow limit. The energy levels involved in a bike crash simply don't compare to the potential for damage in a car crash, in part due to the lack of mass.
The idea that a 10kph speed differential between vehicles is a problem doesn't make any sense considering you have a 25kph speed differential with stationary objects on your commute. Or 50kph if you consider two 25kph bikers passing each other.
It's really a non issue. 25kph is an unreasonably slow limit. The energy levels involved in a bike crash simply don't compare to the potential for damage in a car crash, in part due to the lack of mass.