Crankshaft for 250cc water-cooled 4-stroke (172mm stroke) CH250 engines.  This will work for the 250cc with hi/low and without hi/low

• Piston Pin Diameter: 17mm
• Overall Length: 290mm
• Thread Size (tapered side): M16x1.00
• Thread Size (spline side): M14x1.50
• Bearing Outer Diameter (tapered side): 68mm
• Bearing Outer Diameter (spline side): 68mm
• Number of Splines: 21