specification of electric bike max speed 　 ≤20km/h range 　 40-60km net weight 　 ≤40kg max load 　 75kg consumption/100km 　 ≤1.2kw.h max decibel 　 ≤60dB(A) rated volt. 　 36V rated output 　 180W rated torque 　 7N.m low-voltage protection 　 29.5-31.5V over-current protection 　 12-15A Please contact us for more details!