Salsa Rustler SLX Bike - 27.5", Aluminum, Orange, X-SmallRustler rewards riders who throw some body language into the way they tackle trails. Its responsive trail geometry and 27. 5" wheels will inspire you to find fun on every little trail feature. Top shelf, double and triple butted, heat treated 6066 T6 aluminum tubing allows for a light and strong frame. Additionally, the tubing is strategically shaped and formed for additional stiffness and strength optimization in key stress areas Rear Flip chip