somervillebikes says: June 23, 2010 at 19:36 @tad: ???Helmets and riders going 20+ mph are all absent from great cycling cities.??? if you are referring to copenhagen or amsterdam, perhaps that???s true. but you also have to consider that the drivers in those cities are also more aware of cyclists, and sharing the roads with cyclists is a normal way of life. in the US, that is not the case. even i