I was just at a bike shop and happened to hear the sales person speaking with a customer. The sales person was telling the customer that they needed a different helmet for mtb than for road.
I ride both and I use the same helmet, which is my road helmet.
Is there a difference between them? other than the visor?
2nd question. Do you keep yours for longer than the 5 year recommended duration? Personally, I keep them for as long as they are in good condition, without putting a limit on them.