Petzl Bongo Rock hammer Snow Science relies on a sliding motion

relies on a sliding motion where angled chain plates come in contact with chainring teeth during pedaling

and a flat-bottom profile helps you get a good clean face on your pit wall

The Super Record 2x12-Speed crankset has been made lighter on the inside

Whether you line up with friends for fresh morning corduroy or meet up with your crew to tour a favorite backcountry spot

Petzl Bongo Rock hammer Snow Science relies on a sliding motionDescription Rubber grip reduces vibrations Hole in shaft for attaching a keeper cord Hole in head for attaching a piton removal device Curved head to facilitate piton removal Specifications Weight: 680 g Length: 33 cm