1.Speed sensor, pedelec 2.Steel rigid fork 3.SHIMANO Nexus 3-speed 4.Samples are available in Europe electric bike folding bike e-folding 2011 40-50 km per chargePedelec, Max Speed 25KM/H according to EU regulation samples are available in Europe Frame:20"x1.75, alloy, TIG welded, foldableFork: 1-1/8", steel, uncrown, rigidHandlebar:alloy low rise type handlebar, with alloy stem, foldableBrake ...