Race Face Narrow Wide Chainrings - 9/10/11/12 Speed backcountry nordic ski In addition to serving dutifully

In addition to serving dutifully as on-the-go foot warmers

ActiveIce™ technology actually cools you as you sweat

In running

Half-zip opening with contrast trim

Vibram® LiteBase

Race Face Narrow Wide Chainrings - 9/10/11/12 Speed backcountry nordic ski In addition to serving dutifullySame chain retention, less noise and cleaner performance! NEW removed ridges so it is easier to keep the ring looking clean NEW tooth profile to run quieter, and cleaner Narrow Wide tooth profiling ensures ultimate chain retention Stiff 4mm plate thickness transfer loads without flexing 7075 T6 aluminum, aerospace grade strength Laser etched graphics Compatible with 9, 10, 11 and 12 speed ArmxBCD: 4x104 4 bolt