Crankshaft from Mazzucchelli for Puch MV / VS / MS / DS, Monza, Grand Prix and X50 small engine bikes with 3- and 4-speed engine.
The shaft has a bronze bearing bush instead of a needle bearing for the piston pin.
Dimensions of the crankshaft:
- Total length of clutch-side crankpin: 75 mm
- Total length of clutch-side crankpin: 68 mm
- Length of 1st shoulder (clutch side): 23 mm
- Length 2nd shoulder (clutch side) 12 mm
- Length 3rd shoulder (clutch side) 18.5 mm
- Ø 1st shoulder (clutch side): 17 mm
- Ø 2nd heel (clutch side): 15 mm
- Thread (coupling side): MF10x1 mm
- Length of shoulder (on coupling side): 25 mm
- Ø shoulder (on end face): 17 mm
- Thread (on end face): MF10x1 mm
- Ø Crank webs: 69.6 mm
- Width of crank webs: 34.1 mm
- Ø Connecting rod eye top: 14 mm
- Ø Connecting rod pin bottom: 14 mm
- Connecting rod length (center-to-center): 90 mm
- Stroke: 43 mm
- Weight (including connecting rod). Connecting rod): 927 grams
- Piston pin bush dimension: Ø 12 / 14 x 14.2 mm (axe 12)
Note: Not suitable for the Swiss X30 models with Z50 engine.
Quality product from the Italian manufacturer Mazzucchelli.
Details
| Manufacturer | Mazzucchelli |
| Thread length | 8 mm, 12 mm |
| Material | Steel |
| Cheek type | standard |
| Area of application | Standard |
| Crankshaft stroke | 43 mm |
| Ø piston pin (B) | 12 mm |
| Connecting rod length center-center | 90 mm |
| Total length of crankpin on clutch side | 75 mm |
| Total length crankpin ignition side | 68 mm |
| Ø crank webs | 69.6 mm |
| Ø Connecting rod eye | 14 mm |
| Ø Bearing seat (clutch side) | 17 mm |
| Ø Bearing seat (ignition side) | 17 mm |
| Thread type | MF10x1 (fine pitch thread) |
| Wide crank webs | 34.1 mm |
| Length 1st paragraph | 23 mm |
| Length 2nd paragraph | 12 mm |
| Length 3rd paragraph | 18.5 mm |
| Ø 1st step (on the coupling side) | 17 mm |
| Ø 2nd shoulder (on the clutch side) | 15 mm |
| Weight | 927 g |
| Length of shoulder (ignition side) | 25 mm |
| Number of gears | 2 pcs, 3 pcs, 4 pcs |
Suitable for the following models
| Puch | 2-Gang MS, MV, MV50 |
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Collection only possible with online purchase and appointment.
