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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 “Compatible with the following models.”
The 177 ccm 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 raceway, in combination 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 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 |
| Camouflaged | No |
| 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 |
| Hole spacing outlet | 55 mm |
| Number of fixing points | 4 pcs |
| Decompressor | No |
| Area of application | Tuning |
| 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 |
Accessories & related products
VMC 63 mm cylinder kit "177 Crono" | Vespa Largeframe
Manufacturer: VMC · Material: Aluminum · Displacement: 177 ccm · Crankshaft stroke: 60 mm · Ø cylinder neck: 66.75 mm · Ø Outlet outside: 37 mm · Ø outlet inside: 34 mm · Ø piston pin (B): 15 mm · Outlet type: straight · Hole spacing outlet: 48 mm · Number of fixing points: 4 pcs · Decompressor: No · Camouflaged: No · Area of application: Tuning
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Manufacturer: Polini · Material: Steel · Cheek type: standard · Crankshaft stroke: 57 mm · Connecting rod length center-center: 105 mm · Total length of crankpin on clutch side: 59 mm · Total length crankpin ignition side: 77.35 mm · Ø crank webs: 98 mm · Ø piston pin (B): 15 mm · Ø Connecting rod eye: 19 mm · Ø Bearing seat (clutch side): 25 mm · Ø Bearing seat (ignition side): 25 mm · Thread type: MF12x1.25 (fine pitch thread) · Thread type: MF12x1.5 (fine pitch thread) · Thread length: 14.5 mm · Thread length: 15.5 mm · Dimension needle bearing: 15x19x20 · Wide crank webs: 39 mm · Control time according to O.T: 5 ° · Control time according to O.T: 138 ° · Area of application: Tuning
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Polini crankshaft "Racing" 60 mm long-stroke | Vespa PX, P, Cosa, GTR, TS, Sprint V.
Manufacturer: Polini · Material: Steel · Cheek type: standard · Crankshaft stroke: 60 mm · Connecting rod length center-center: 105 mm · Total length of crankpin on clutch side: 59 mm · Total length crankpin ignition side: 77.35 mm · Ø crank webs: 98 mm · Ø piston pin (B): 15 mm · Ø Connecting rod eye: 19 mm · Ø Bearing seat (clutch side): 25 mm · Ø Bearing seat (ignition side): 25 mm · Thread type: MF12x1.25 (fine pitch thread) · Thread type: MF12x1.5 (fine pitch thread) · Thread length: 14.5 mm · Thread length: 15.5 mm · Dimension needle bearing: 15x19x20 · Wide crank webs: 39 mm · Control time according to O.T: 5 ° · Control time according to O.T: 138 ° · Area of application: Racing
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Dell'Orto SI 24.24E carburetor without separate lubrication | Vespa PX200, Rally 200
Manufacturer: Dell'Orto · Camouflaged: No · Component group Carburetor: Carburetor complete · Material: Aluminum · Carburetor type: SI · Nominal diameter: 24 mm · Ø Inside entrance: 23.8 mm · Ø Output inside: 23.8 mm · Air filter connection thread: M5x0.8 (standard thread) · Ø fuel hose connection: 8.3 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: Cable choke · Choke nozzle size: 60 · Nozzle block: BE3 · Nozzle size: 118 · Mounting type: Screws · Total length: 125 mm · Width: 78 mm · Height: 81 mm · Area of application: Standard · Area of application: Tuning · Piaggio OEM number: E.5474 · Piaggio OEM number: E5474 · Piaggio OEM number: 131038 · Piaggio OEM number: 132371
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Dell'Orto main jet (80 - 140 of your choice) SI carburetor
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