I took a decent sized spill a few weeks ago, and along with broken bones and some surgery, I also planted my brand new Xult helmet into the ground on its maiden adventure and only seventh run of its short life. I also had box-fresh downhill trousers, backplate and kneepads that were all cut off in the hospital; the morphine was well and truly in my veins and I couldn't even get the words, "Don't cut them off, they're brand new!"
out of my mouth.
It should be common knowledge that after a crash or impact you need to replace your helmet, Why? Even though the helmet may look OK, the EPS (expanded polystyrene) foam liner that absorbs the impact can be compressed. If you land again on the same point, the crushed foam will have nothing left to absorb the impact, and more force will be transferred to your head.
In a dream world, you would just grab a fresh lid straight out of the box, even if you merely drop it on the floor. In reality, after exchanging $450 dollars of your hard earned on a carbon fibre shelled Troy Lee D3, you will at some point headbutt a local tree or rock. Even without a concussion, you might not fancy another trip to the shop with a wedge of cash large enough to feed a family for a couple weeks.
Do replace your helmet at any cost? Head to the shop when there is visible damage, or just keep on hitting and hoping?