Original sentence: A study of cycling in major streets of Boston, Paris and Amsterdam reflects the cycling cultural differences: Boston had far higher rates of helmet-wearing (32% of cyclists, versus 2.4% in Paris and 0.1% in Amsterdam), Amsterdam had a far higher numbers of cyclists (242 passing bicycles per hour, versus 74 in Paris and 55 in Boston).Cycle helmet wearing rates in the Netherlands and Denmark are very low.Road safety research professionals in the Netherlands do advocate helmet use and helmet laws.The UK's CTC contrast this with their view of cycling in the Netherlands and Denmark, which they say is perceived as a "normal" activity requiring no special clothing or equipment
Edited sentence: A study of cycling in major streets of Boston, Paris and Amsterdam reflects this cultural difference: Boston had far higher rates of helmet-wearing (32% of cyclists, versus 2.4% in Paris and 0.1% in Amsterdam), but Amsterdam had far higher numbers of cyclists (242 passing bicycles per hour, versus 74 in Paris and 55 in Boston).In contrast, cycling in the Netherlands and Denmark is perceived as a "normal" activity requiring no special clothing or equipment, cycle helmet-wearing rates are very low and helmets are far less on the road safety policy agenda.On the other hand, road safety research professionals in the Netherlands advocate helmet use and helmet laws