Quote Originally Posted by porkies
helmet dropped this morning 4ft onto concrete, made hell of a crack nosie when it hit, but no visiable damage in or out, removed inner lining and can't see anything thing amiss. Should i replace it?

i know it sounds obvious but i'm unsure?

Thanks
If your head had been inside it at the time would you be questioning what to do now? Sorry, but its not worth skimping with regards to brakes and tyres on bikes and the same is true of helmets. Not even a surgeon can diagnose a bone fracture without going for an x-ray - same applies here.