CDHPOWER 26" Bike Rear Mag Wheel/Magnesium Wheel Rim 135MM-Gas Motorized Bicycle

Rim's diameter is about 570mm, the diameter would be about 660mm after installed with tire and inner tube, that's called 26 inch wheel. Compatible with rotary flywheel 7/8/9 Speed; Fit Flywheel with Size of thread :1.375"*24T Put grease/lubricating oil on thread of wheel to prevent damage of thread from Riding The hole spacing for front disc brakes of mag wheel to be added is 44mm The hole spacing for front and rear wheel both 44mm Wheels Rear Dropout: 135mm