L-faster 24V36V250W Electric DC Motor Brushes Motor for Electric Bike Conversion Kit Electric Bicycle Scooter Motor This item is a brush motor for electric bicycle.   Model: MY1016Z2  Voltage: 36 Volt DC  Output: 250 Watt  Sprocket: 9Tooth only fits #410 bicycle chains  For Chain Size: Pitch 0.5in  Roller Diameter 0.3in  Roller Width 0.16in   We have both 250W and 350W for this motor. this link is for 250W, if you want 350W, please click another link. BR&gt;BR&gt;