re question about helmets in article qmnp inn v mojo eng umd edu oconnor eng umd edu mark o connor writes on the other side of the fence i owned a bieffe off road helmet took what i would consider a minor fall and had visible damage to the shell yes the helmet did its job but the damage impact ratio was scary i own bell moto now have taken impacts on order of twice the bieffe impact we do this frequently in mx and don t even have a scratch on it after two seasons my recommendation is to buy high quality gear ymmv when your helmetted nogin hits an immoveabe object there are only four things to dissipate the energy the immoveable object the helmet shell the helmet liner the rider s head the rider s ego ok five assuming that the helmet head assembly takes the same impact if the shell cracks in one case then in the other the liner must be dented or the head gets jiggled if it s the the liner that s dented the helmet is just as toast as if the shell were cracked it won t absorb energy form an impact in that area if it s the head that s getting jiggled maybe the new gear isn t of as high quality after all i ve bike like jody levine dod kv got a you can if you pf jody p levine hydro on ca ride it toronto ontario canada
