New Shimano XTR: developed for Cross Country (XC) and All Mountain (AM) categories. In the development phase of the new Shimano XTR group, Shimano engineers and designers focused on a rider-tuned concept, which means that the components have been engineered to perfectly match the needs and riding styles of individual mountain bikers. This broadens the scope of Shimano XTR and makes it the benchmark not only for Cross Country racers but for All Mountain riders too.