... power:250W Max Power: 350W mini Controller for e-bike System Protection Featuretages:Under-voltage Protection,Overload Protection,Motor Block ... 90mm*50mm*32mm Specification:1,Category:brushless controller for Electric bike and electric vehicle2,Model: A0, module.3,Size: Mini ... ABS optional)6,Limited speed7,1:1 power-assisted8,Prevent bicycle from running when starting9,Driving further for power-saving ...