Rushmore Mountain Sports is a biking and climbing shop in downtown Spearfish in the northern Black Hills. We are a full-service shop offering shock rebuilds, tune-ups, sales, fat tire rentals, and full suspension demos, and featuring Trek, SALSA, Scott, Cannondale Surly and more. We also offer rock climbing gear. Our shop hours are 9 a.m.-5:30 p.m., Monday through Friday, and 9 a.m.-5 p.m., Saturday (we are closed on Sunday).