There's never been a wider selection of mountain bike helmets to choose from, so here's what to look out for if you're thinking of replacing your lid.
Open or full-face?
If you're a downhill rider or spend your time at the extreme end of the spectrum, you're going to want a dedicated full-face helmet. For an in-between option, consider a lighter weight full face helmet or one whose chin guard can be removed. The latest generation of all-mountain/enduro lids provide more coverage at the rear of your head.