Crankshaft SWIING ZA50 2-speed automatic (10.2mm)

High-end crankshaft from swiing suitable for Puch Maxi S, Supermaxi LG2 and Puch X30 NG-2AH mopeds with ZA50 engine. The high-quality solid-cheek crankshaft is designed for use in engines with significant power increases.

• Maximum pre-compression due to balancing holes with aluminum inserts.
• Specially adapted clutch-side cheek pin for ZA50 engines! Correct mass, correct tolerances and correct thread specifically for Puch mopeds with ZA50 automatic engines.
• Solid connecting rod with a stable connecting-rod pin with 16mm diameter. In addition, the pin has improved balancing through an internal cavity. Silver bearings with excellent emergency-running properties are used as connecting-rod bearings.
• Brass pin with 10.2mm diameter (suitable for clutch baskets with 10.25mm inner diameter)

• Stroke: 43mm
• Weight (incl. connecting rod): 1062g


• Clutch side:
• Total cheek-pin length: 117.8mm
.
• Diameter: 1st step: 20mm, 2nd step: 16.4mm, 3rd step: 10.2mm
• Thread: M16x1.5mm


• Ignition side:
• Total cheek-pin length: 79.5mm
• Cheek-pin diameter: 17mm
• Thread: MF10x1mm


• Crank-web diameter: 69.9mm
• Crank-web width: 34mm


• Top connecting-rod eye diameter: 15mm
• Bottom connecting-rod pin diameter: 16mm
• Connecting-rod length: 90mm