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Malossi 63 mm racing cylinder kit “MHR 177” compatible with your Vespa large-frame scooter. You can find a list of the exact models below in the drop-down menu under “Suitable for 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 bore, combined with the aluminum body, ensures good heat dissipation and makes the tuning cylinder a strong foundation for performance-oriented large-frame engines. The bolt-on exhaust flange gives you additional flexibility for further upgrades if your setup is geared toward serious tuning.
Displacement: 177 cc
Bore: 63 mm
Stroke: 57 mm
Ø Piston pin (B): 15 mm
Piston rings: 1 pc.
Überströmkanäle: 7 pcs.
Exhaust: 2-piece
The scope of delivery 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.
Quality product from the Italian manufacturer Malossi.
| Manufacturer | Malossi |
| Material | Aluminum |
| Displacement | 177 ccm |
| Crankshaft stroke | 57 mm |
| Ø cylinder neck | 67 mm |
| Ø Outlet outside | 37 mm |
| Ø outlet inside | 33.9 mm |
| Area of application | Tuning |
| Ø piston pin (B) | 15 mm |
| Number of fixing points | 4 pcs |
| Outlet type | straight |
| 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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