Optimized full cheek racing crankshaft suitable for Puch Maxi S / N, as well as Supermaxi LG1 mopeds / mopeds with a 1-speed E50 engine.
In addition to the balancing holes in the cheeks, the lower connecting rod pin has also been sealed with an aluminum insert for maximum pre-compression in the new 2023 version.
The polished connecting rod also ensures optimum flow behavior of the air-fuel mixture.
Additional lubrication slots on the connecting rod ensure clean running even at high engine speeds.
Dimensions of the crankshaft:
Total length of clutch-side crankpin: 74 mm
Total length of clutch-side crankpin: 67 mm
Length 1. Heel (clutch side): 9 mm
Length 2nd heel (clutch side) 14.5 mm
Length 3rd heel (clutch side) 25 mm
Ø 1st heel (clutch side): 22 mm
Ø 2nd shoulder (clutch side): 17 mm
Ø 3rd shoulder (clutch side): 15 mm
Thread (coupling side): MF10x1 mm
Length of shoulder (on coupling side): 26.3 mm
Ø shoulder (on coupling side): 17 mm
Thread (on end face): MF10x1 mm
Ø Crank webs: 69.9 mm
Width crank webs: 34 mm
Ø Connecting rod eye top: 15 mm
Ø Connecting rod pin bottom: 16 mm
Conrod length (center-center): 90 mm
Stroke: 43 mm
Weight (including connecting rod). Connecting rod): 975 grams
Needle bearing dimension: Ø 12 / 15 x 14.7 mm (axe 12)
Notes: Depending on the manufacturing tolerances, the keyway may not be milled deep enough for the driver key. The wedge must be adjusted accordingly.
The clutch nut must be tightened to a maximum torque of 28 Nm.
You can find the right bearings and oil seals in the accessories section.
Quality product from the Portuguese manufacturer Rito.
Alternative to the Puch spare part number: 349.1.10.015.0
Details
| Manufacturer | Rito |
| Material | Steel, Aluminum |
| Cheek type | Full cheeks |
| Area of application | Tuning, Racing |
| Crankshaft stroke | 43 mm |
| Connecting rod length center-center | 90 mm |
| Total length of crankpin on clutch side | 74 mm |
| Total length crankpin ignition side | 67 mm |
| Ø crank webs | 69.9 mm |
| Ø Connecting rod eye | 15 mm |
| Ø piston pin (B) | 12 mm |
| Ø Bearing seat (clutch side) | 17 mm |
| Ø Bearing seat (ignition side) | 17 mm |
| Thread type | MF10x1 (fine pitch thread) |
| Thread length | 10.5 mm, 12.5 mm |
| Dimension needle bearing | 12 / 15 x 14.7 mm (axe 12) |
| Length 1st paragraph | 9 mm |
| Length 2nd paragraph | 14.5 mm |
| Length 3rd paragraph | 25 mm |
| Ø 1st step (on the coupling side) | 22 mm |
| Ø 2nd shoulder (on the clutch side) | 17 mm |
| Ø 3rd step (on the clutch side) | 15 mm |
| Length of shoulder (ignition side) | 26.3 mm |
| Weight | 975 g |
| Number of gears | 1 pcs |
| Alternative version of the Puch spare part no. | 349.1.10.015.0 |
Suitable for the following models
| Puch | E50 |
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