New Innovative Powertrain The Surron 4th technology powertrain was designed uniquely for Ultra Bee Black Version. Its special full isolated electrical architecture can stay clear of prospective interference among substantial and reduced voltage circuit elements.The mixture of 74V55AH battery pack and 12.5KW / 440N.m torque drivetrain can make Ultra https://sites.google.com/view/surron-2025/home