The Hobie Mirage Idler Pulley for the Mirage Drive GT is a replacement idler pulley for the Hobie Mirage Drive with Glide Technology. The idler pulley holds the idler cable which attaches to the Mirage Drive sprockets. The Mirage Drive GT will have a gray drum and sprockets where the V1 and V2 drives have a black drum and sprockets. The GT version will also have decal that says "Glide Technology". Sold individually.