The specialized rockhopper expert mountain bike 2018 is the perfect bike to begin your dive into the xc world built to be light durable and exceedingly capable without compromising on how fun it is to ride out on the trails it starts with the new a1 sl alloy frame that has optimized tube shapes which save weight while dramatically improving aesthetics to go along with these clean new lines the new rockhopper also has internal cable routing to further clean up the frame lastly sport xc 2