Protecting the cranium is essential, and if you ride aggressive terrain, a full-face mountain bike helmet ... and a chin bar ...

Looks aside, many riders love modular motorcycle helmets. The upside is obvious. You don’t have to remove sunglasses or gloves, undo the chin strap and find a safe place to put your helmet ...

Another stellar performer in Virginia Tech’s safety tests, this helmet is intended for use on mountain-bike trails ... The buckle and adjustable chin straps, which keep the Downtown helmet ...

and sometimes have a removable chin bar. Related: The 10 Best Full-Face Mountain Bike Helmets of 2025 While these might not be essential for every type of riding, those starting on their MTB ...