Mazzucchelli tuning crankshaft for rotary valve intake suitable for your Vespa P125X, PX125 Lusso, PX125 MY, P150X, P150S, PX150 MY, Cosa 125, Cosa 150, GTR, TS, Sprint Veloce and Super 150.
The finely balanced tuning shaft with extended timing is suitable for light tuning setups with rotary valve inlet and impresses with its high-quality workmanship. Suitable for Vespa Largeframe 125 / 150 cc engines. The timing is 135° / 6° after TDC.
| Dimension needle bearing | 15x19x20 |
| Manufacturer | Mazzucchelli |
| Material | Steel |
| Cheek type | standard |
| Crankshaft stroke | 57 mm |
| Ø piston pin (B) | 15 mm |
| Connecting rod length center-center | 105 mm |
| Total length of crankpin on clutch side | 58 mm |
| Total length crankpin ignition side | 76 mm |
| Ø crank webs | 98 mm |
| Thread type | MF12x1.25 (fine pitch thread), MF12x1.5 (fine pitch thread) |
| Ø Connecting rod eye | 19 mm |
| Ø Bearing seat (clutch side) | 25 mm |
| Ø Bearing seat (ignition side) | 25 mm |
| Wide crank webs | 38.9 mm |
| Area of application | Standard |
| Piaggio OEM number | 133154, 131121 |
| Vespa | Vespa PX, T5, Cosa - P125X · VNX1T · 1977–1982 (Old PX) External Lock , P125X · VNX2T · 1981–1984 (Old PX) Internal Lock , PX125 E · VNX2T · 1982–1993 / Lusso / Arcobaleno , PX125 · VNX2T · 1993–1996 Classic , PX125 · VNX2T · 1997–1999 (Disc) , PX125 · ZAPM471 · 2001 Model Year Catalytic Converter , P150X · VLX1T · 1978–1993 , P150S · VBX1T · 1978–1990 , PX150 · ZAPM742 · 2001 Model Year Catalytic Converter , Cosa 125 · VNR1T · I 1988–1992 II 1992–1998 , Cosa 150 · VLR1T · I 1988–1991 II 1992–1995 |
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