The specialized langster street singlespeed bike 2017 is the pinnacle of simplistic performance focused bike design with its stiff and responsive a1 premium aluminium frame and durable build kit the langster street is a city bike distilled down to its purest form specialized langster street 2017 features a1 premium aluminium frame with track specific geometry has fully manipulated tubing and impressive overall stiffness making the langster a formidable threat on both the track and th