The VMC Stelvio is a high-quality 177cc racing cylinder for the Vespa PX 125. Made from aluminium, the cylinder features a Nikasil coating, 7 ports and timing designed for touring use. The cylinder kit is suitable for all Vespa PX 125 models.
The VMC Stelvio combines a sporty specification with timing suitable for touring applications. The VMC 177cc cylinder is therefore particularly suitable for riders building a performance-oriented Vespa engine intended for road use and longer tours.
Aluminium cylinder with Nikasil coating
The cylinder is made from aluminium and features a high-quality Nikasil coating. This combination is one of the defining features of the VMC Stelvio and makes it a technically sophisticated tuning cylinder for the Vespa PX 125.
With a 63 mm bore and a 57 mm stroke, the cylinder has the specified displacement of 177cc.
7-port cylinder with touring-oriented timing
The VMC Stelvio features 7 ports and specified timing of 114°/171°. According to the manufacturer, the timing is designed for touring-oriented use.
The Stelvio is therefore suitable for performance-oriented Vespa PX 125 engines where a touring-capable engine configuration is required rather than a setup focused exclusively on maximum peak power.
High-quality cylinder head
The kit includes a specially manufactured cylinder head with eight mounting points. A Viton O-ring provides additional sealing between the cylinder and cylinder head.
The cylinder head uses a central spark plug arrangement. The exhaust outlet is bolt-on.
Suitable for Vespa PX 125
The VMC Stelvio 177cc cylinder is suitable for:
The cylinder kit is therefore suitable for upgrading or building Vespa PX 125 engines.
Technical Data
- Manufacturer: VMC
- Model: Stelvio
- Displacement: 177cc
- Material: Aluminium
- Coating: Nikasil
- Stroke: 57 mm
- Bore: 63 mm
- Ports: 7
- Timing: 114° / 171°
- Cylinder head: 8 mounting points
- Cylinder head seal: Viton O-ring
- Cylinder head: Central spark plug
- Exhaust outlet: Bolt-on
- Suitable for: Vespa PX 125
The VMC Stelvio 177cc is a high-quality aluminium cylinder for the Vespa PX 125, featuring a Nikasil coating, 7 ports and touring-oriented timing.
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