Amazon.com : 250W 24V Electric Bicycle Conversion Kit Brush Motor with Freewheel, Left Side Drive Motor Thumb Kit Mountain Bike Conversion Custom for Electric Common Bike Bicycle Wheel USA Stock : Sports & Outdoors

★ This item is for the bike that uses the hub diameter less than 36mm.
★ This item doesn't include battery or charger.
★ Motor use freewheel so when wheel rotating, the motor will not rotate, just like a normal bike, this can reduce resistance.
★ This is our newest kit for electric common bike, this kit mounts the sprocket on the wheel spokes, so it fits most of bicycle wheel.
★ 100% Satisfaction Guarantee If You Have Any Questions About The Product Or Are Not Satisfied With The Product, Please Feel Free To Contact Us. We Will Then Offer You The Best Solution. Your Satisfaction Is Our Greatest Concern.