Bicycle Rear Hub Assembly for 2 stroke gas motorized bicycle

Unique Design of “Rear hub and Bracket” for gas motorized bicycle(please refer to pictures uploaded with sizes in detail);  For 36 spokes;  Length of Axle:180mm(For more sizes in detail, pls refer to pictures uploaded ) Thickness of Alum Bracket:8.5mm;Inner Diameter:36mm;Diameter of hole to hole:44mm;