Rossignol BC 110 Positrack Ski. The BC 110 is a lightweight, metal edge touring ski designed for off trail exploring without the need for climbing skins. The new moderate tip rocker provides better float and easier turn initiation. The waxless Positrack base provides maximum grip and the best compromise between kick and glide in all snow conditions. Full length metal edges, lower camber height and an effective sidecut allow strong, confident turns on the descent. Built with a sturdy Wood Air core, the BC 110 is a durable, dependable and lightweight touring partner for off trail exploring.