Vespa P125X 3 Port Piston Kit - Standard 52.5mm & Oversizes VESPA P125X , Late Sprint with 3 transfer ports.
Kit consists of,
Piston, Gudgeon Pin, 2 x Piston Circlips, 2 x Piston Rings 2.5mm Thick
The P125X piston kit is fully interchangeable with the PX125EFL piston kit - only difference is the top piston ring is a different type.
Standard 52.5mm Oversize 1st (+0.2mm) 52.7mm Oversize 2nd (+0.4mm) 52.9mm Oversize 3rd (+0.6mm) 53.1mm Oversize 4th (+0.8mm) 53.3mm Oversize 5th (+1.0mm) 53.5mm