This Magneto Cylinder / Stator Housing is the most common design used for 50cc 70cc 90cc 110cc and 125cc ATV engines and electric start dirt bikes. This cylinder has a outside diameter of 11cm and a inside diameter of 8.8cm.
Inner Diameter (ID): 86.4mm
Outer Diameter (OD): 110.2mm
Overall Height: 50.9mm
Center Hole Mount (Tapered): 18.8/14mm
Mounting Holes (center - center): 50mm
Mounting Holes: 9mm