The NY Times looks at the trade-offs between requiring or encouraging helmet use, and actually getting people to ride bikes. American Bike Advocate Sacrilege, perhaps, but I agree: if we want cycling to be mainstream everyday transportation, the helmets and the spandex are going to fall by the wayside, and that’s fine. Promoting helmet use in the US has become a rational astrology: a norm we conform to no matter whether we believe it to be justified, because the social consequences of deviance are too large.