Piston (57.2, 1st Oversize) for Vespa VBA, VBB

Piston for Vespa VBA and VBB Scooters

This replacement piston suits classic Vespa VBA and VBB scooters. Its diameter is 57.2 mm, and it is the 1st oversize version. The piston helps keep the combustion chamber sealed, which matters for how the engine runs. Like many vintage Vespa scooter parts, it drops in where the original piston was.

Function Overview

The piston and rings cooperate to keep the combustion chamber sealed. When the rings wear, you may notice more smoke, higher oil use, and lower compression. For good results, make sure the piston diameter and pin size match your cylinder.

Specifications

• Size: 57.2 mm
• Oversize: 1st
• Fits: Vespa VBA and VBB engines, 57.2 mm bore 1st oversize piston

Compatibility

Compatible with:

• Vespa VBA (57.2 mm 1st oversize piston)
• Vespa VBB (57.2 mm 1st oversize piston)

Selection tip: Confirm your cylinder bore matches this piston, which is 57.2 mm in the 1st oversize size.

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