The Vector X10 looks fast just sitting still. But youll need to climb aboard for a taste of just how fast and light this bike really is. The Vectors beautifully hydroformed frame is substantially stronger and stiffer than the Mµ SL frame it replaces. Extra cool? How about the new 11-36T 10 speed cassette paired with a custom 55T FSA crankset that gives the Vector an even wider gear range than other folding bikes with a conventional 53/39T double crankset. Throw in rocket-fast Kinetix Pro wheels and custom Schwalbe Durano tires and you have one of the fastest, lightest folding bikes on the planet.