Replacement piston for the BGM PRO150cc cylinder for Vespa Wideframe.

Here in the 1st oversize with 57.5mm. The cylinder must be ground / honed accordingly at an engine repairer to this dimension. The piston has suitable for the grinding dimension 57.5mm the correct undersize to obtain the correct piston running clearance.ideal to repair a defective cylinder again.AI-translation

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OEM numbers (for comparison purposes only)
Scooter Center:
BGM1550PB
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