One side shaft mechanics, easy for assembly Motor detachable from the rim, each for changing tyres Suitable controller provide Rated voltage 48V Rated power 1.5KWRated current 30A Speed without load 650rpmRated Speed 580rpmMaximum power 2.5KW Maximum torque at maximum power 44N.m Speed at maximum power 530rpm electric car hub motor 48v2.5kw