High quality crankshaft from swiing suitable for Puch Maxi S, Supermaxi LG2 and Puch X30 NG-2AH mopeds with original ZA50 engine.Highlights: Specially adapted clutch side cheek pin for ZA50 engines! Correct mass, correct tolerances and correct thread specifically for Puch mopeds with ZA50 automatic engines. Brass pin with 10.2mm diameter (suitable for clutch baskets with 10.25mm inner diameter). Solid connecting rod with sturdy connecting rod pin with 16mm diameter. In addition, the pin has improved balancing by a cavity inside.Dimensions: Stroke: 43mm Weight (incl. connecting rod): 1012g Clutch side: Total length of cheek pin: 117.8mm Diameter: 1st heel: 20mm , 2nd heel: 16.4mm , 3rd heel: 10.2mm Thread: M16x1.5mm Ingnition side: Total length cheek pin: 79.5mm Diameter heel: 17mm Thread: MF10x1mm Diameter crank webs: 69.9mm Width crank webs: 34mm Diameter connecting rod eye top: 15mm Diameter connecting rod pin bottom: 16mm Conrod length: 90mm Supplied as shown in the product photo with a 12/15x14.2mm needle bearing.