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63 mm "MHR 177" racing cylinder kit compatible with your Vespa large-frame scooter. You can find a list of the exact models below in the drop-down menu under "Compatible with the following models."
The 177 cc aluminum cylinder is designed for a 57 mm stroke and features a 63 mm bore, 7 overflow channels, and a two-piece exhaust port. The coated cylinder bore, combined with the aluminum body, ensures effective heat dissipation and makes this tuning cylinder a solid foundation for performance-oriented large-frame engines. The bolt-on exhaust flange gives you additional flexibility during further assembly if your engine setup is designed specifically for tuning.
The package includes the cylinder, the piston with piston ring, and the cylinder head.
Note: Please observe the installation direction during assembly. The piston is installed with the arrow pointing toward the exhaust on the exhaust side.
You can find matching crankshafts, exhaust systems, and carburetors for tuning in the accessories section.
A quality product from the Italian manufacturer Malossi.
| Manufacturer | Malossi |
| Material | Aluminum |
| Area of application | Tuning |
| Displacement | 177 ccm |
| Crankshaft stroke | 57 mm |
| Ø cylinder neck | 67 mm |
| Ø Outlet outside | 37 mm |
| Ø outlet inside | 33.9 mm |
| Ø piston pin (B) | 15 mm |
| Outlet type | straight |
| Number of fixing points | 4 pcs |
| Hole spacing outlet | 55 mm |
| Decompressor | No |
| Camouflaged | No |
| Vespa | Vespa PX, T5, Cosa - P125X · VNX1T · 1977 - 1982 (PX alt) Aussenverschluss , P125X · VNX2T · 1981 - 1984 (PX alt) Innenverschluss , PX125 E · VNX2T · 1982 - 1993 / Lusso / Arcobaleno , PX125 · VNX2T · 1993 - 1996 Classic , PX125 · VNX2T · 1997 - 1999 (Disc) , PX125 · ZAPM471 · 2001 MY Katalysator (Millenium) , P150X · VLX1T · 1978 - 1993 , P150S · VBX1T · 1978 - 1990 , PX150 · ZAPM742 · 2001 MY Katalysator (Millenium) , Cosa 125 · VNR1T · I 1988 - 1992 II 1992 - 1998 , Cosa 150 · VLR1T · I 1988 - 1991 II 1992 - 1995 |
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