There actually isn't anything in statute that requires cyclists to wear a helmet. It is in the highway code, but it is written as "should" and, as the highway code is not in itself law, there is no legislation to enforce the guidance.
There actually isn't anything in statute that requires cyclists to wear a helmet. It is in the highway code, but it is written as "should" and, as the highway code is not in itself law, there is no legislation to enforce the guidance.