• The weird bit about the Sustrans thing is:

    For example, a recent academic study showed cycle helmets offer "effective protection at low speeds of less than 50km/h (31 mph)".

    My definition of low speed on a bike would be about half that. Anything above 20mph is pretty fast.

  • The next bit says

    ... less protective the faster cars are travelling, and were of "minimal" use in crashes with cars travelling at more than 50km/h (31 mph).

    So now I'm not sure whether the first 50km/h meant the speed of the bike, or the speed of the previously-unmentioned car it's colliding with.

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