billet sprocket adaptor

Newly completed. GT2A aluminum frame. 66cc 2 stroke china engine with cut piston & drilled wrist pin, wrist pin and connecting rod bearings. Tuned carbonator and pipe, NGK spark plug and cap. Worksman 26"x 2.125" HD double wall alloy 36h rims, 11g stainless steel spokes, front drum brake hub...