Motion Pro 08-0386 Flywheel Puller M30 X 1.0 R.H. On Vintage bike applications, always measure flywheel thread diameter, thread pitch and thread direction before purchase Replaces OEM tool YM-04141 Also fits older Bosch, Femsa, and Motoplat ignitions, on Maico, Ossa, Penton, Puch, Sachs, Zundap, and other Euro mini bikes.