rossignol bc auto xc ski bindings mens rossignol the bc auto is an easy-to-use, traditional screw-mount backcountry binding for off-trail skiers. the easy, hands-free click-in/ click-out design provides fast, user-friendly entry and exit. the bc auto features an extra-wide 56mm steering plate for increased stability in variable snow and 40-shore flexbit. flexbit: 40 shore . mechanism: automatic . weight: 455g/pair.