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!