When designing the turbo levo fsr 6fattie specialized started by building a trail bike with all the hallmarks that they have become well known for in the mountain bike world this means that you get a roomy top tube for an easy fit ultra short chainstays for nimble handling and a low bottom bracket that makes the bike feel glued to the trail the efficiency off the powerful turbo technology mates the battery and motor into the m5 frame like no one else the exclusive custom tuned motor smoot