... , brushless;(optional power: 36V 200W; 36V 350W),shimano nexus 3 speed Electric Tricycle, Our main productsinclude Electric bicycle,bicycle,bmx&freestyle ... ;discharge cycles:500; estimated life:2 years 6.Performance: max speed:25km/h for EU Norms; twist throttle:Pedals Assisted System ... :front v-brake,rear shimano roller brake fork:steel fork wheel/rim:front :20 inch; rear:26 inch,double walls alloy ...