6D Helmets Alterra MTB Helmet - Solid - Sand6D Alterra MTB Helmet Advanced Protection Meets All Day Comfort The 6D Alterra redefines what a full face enduro helmet can bedelivering industry leading impact protection, a featherlight design, and premium ventilation without sacrificing coverage. Engineered with 6D's exclusive Omni Directional Suspension (ODS) technology, the Alterra is built to keep you safe whether you're charging steep descents, tackling technical terrain, or spinning out long e

double carcass design with downhill apex

WEIGHT:140G

Liner: 90% polyester

26mm / 31mm / 36mm Internal width tubeless ready rim

perfect for riders looking for reliable grip and protection on fast

Quick clamp with cam-lock

Used in conjunction with nearly any Park Tool bottom bracket tool

Having the kit that makes it easier for us to get back up when we fall can make or break any day’s riding

Two Position Switch

LIFETIME WARRANTY

Engineered proprietary tooth profile maintains the quiet and smooth performance of the HG+ drivetrain with legendary Wolf Tooth chain retention

eye-catching