12 volt windings give better low RPM charging compared to re-regulated 6 volt items.
UK manufactured, 12 volt armature for E3L dynamos (p/n 20036). Used on BSA A7/10 twins & C10/C11 (1949-55). Check your manual as may fit other models.
Threaded shaft with taper, 190mm long. We offer a fitting service for this part.