Piston Rng (52.7, 1st Oversize) for VNB1 & Vespa VNC1 / VNX

Piston Ring for VNB1 and Vespa VNC1/VNX Models

This 1st oversize piston ring is 52.7mm across and made for the VNB1 and Vespa VNC1/VNX models. It helps the combustion chamber stay sealed, which matters a great deal for how the engine runs. Swapping out worn rings can help with symptoms like smoke, heavy oil use, and weak compression. It is one of the vintage Vespa scooter parts that a home mechanic can fit without special tools.

What This Part Does

The piston rings keep the combustion chamber sealed. Once they wear down, the engine can start to lose performance in several ways. Replacing them at the right interval keeps the engine running efficiently.

Specifications

• Size: 52.7mm
• Position: Piston
• Fits: Vespa VNB1, VNC1 and VNX engines with a 52.7mm bore, 1st oversize piston

Fitment

Compatible with:

• Vespa VNB1 (52.7mm bore, 1st oversize)
• Vespa VNC1 (52.7mm bore, 1st oversize)
• Vespa VNX (52.7mm bore, 1st oversize)

How to choose: Check that the bore matches your cylinder. This ring measures 52.7mm, so only use it if your piston is the 1st oversize size.

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