[ocelot]

I have a 661 Evo Carbon from 2009 (red, white and carbon). It's been squeaking for as long as I can remember. Thing is, I don't remember at all if it was squeaking when I first got it. Sure, I've had some nasty spills, but I've never had any heavy impacts on the head. The outer shell is free from heavy scratches that I would associate with serious helmet-damaging imacts.

What are the chances that the foam has been compressed and I need to ditch the helmet, or the tolerances of the foam is just poor? Anyone else with the same helmet or similar notices it on their's as well?

 

[rigidhack]

Could be that the foam has come disconnected from the shell in which case it is new helmet time for sure. I had/have a Giro Remedy that did this, so I've got a new Kali on the way.

 

[kidwithbike]

I have experienced this on several helmets,

possibly the liner scaping/squeaking against stickers attached to the inner foam. seemed hard to believe, but in some cases removing the stickers helped.