Optimized and lightened full cheek racing crankshaft.
Due to the two splines, this crankshaft is suitable for manual Puch X30 NS and NL, Velux, MV50, MKII, Maxi HP2 and custom mopeds / mopeds with Z50 engines.
In the new 2023 version, in addition to the balancing holes in the cheeks, the lower connecting rod bolt has also been sealed with an aluminum insert for maximum pre-compression. The solid connecting rod with the stable 16 mm connecting rod bolt has also been sealed with an aluminum insert. In addition, the polished connecting rod ensures optimum flow behavior of the air-fuel mixture and the additional lubrication slots guarantee clean running even at high engine speeds. The lightened cheeks on the inside ensure even better balancing and therefore smoother running.
Dimensions of the racing shaft:
Total length of clutch-side crankpin: 58 mm
Total length of clutch-side crankpin: 67.5 mm
Length of 1st shoulder (clutch-side): 19 mm
Length 2nd shoulder (clutch side) 18.5 mm
Ø 1st shoulder (clutch side): 17 mm
Ø 2nd shoulder (clutch side): 15 mm
Thread (coupling side): MF10x1 mm
Length of shoulder (on coupling side): 18 mm
Ø shoulder (on coupling side): 17 mm
Thread (on end face): MF10x1 mm
Ø Crank webs: 69.8 mm
Width crank webs: 34.3 mm
Ø Connecting rod eye top: 15 mm
Ø Connecting rod pin bottom: 16 mm
Connecting rod length (center-to-center): 90 mm
Stroke: 43 mm
Weight (including connecting rod). Connecting rod): 913 grams
Dimension needle bearing: Ø 12 / 15 x 14.7 mm (axe 12)
Use with Z50 engines on the Puch X30 NS/NL (Fahrtwindgekühlt): Keyway at 14 o'clock
Use with Z50 engines on the Puch Velux (fan-cooled): Keyway at 12 o'clock
The needle bearing is included in the scope of delivery.
The matching bearings and oil seals can be found under accessories.
Note: The fit for the clutch hub is very precise. You may need to apply a little pressure to insert the hub. The clutch hub with item number 32380 is not compatible with this crankshaft.
Alternative to Puch spare part number: 350.7.10.015.0, 349.1.10.215.0
Quality product from the Portuguese manufacturer Rito.
Details
| Manufacturer | Rito |
| Material | Steel, Aluminum |
| Area of application | Tuning, Racing |
| Cheek type | Full cheeks |
| Crankshaft stroke | 43 mm |
| Thread type | MF10x1 (fine pitch thread) |
| Ø piston pin (B) | 12 mm |
| Connecting rod length center-center | 90 mm |
| Total length of crankpin on clutch side | 58 mm |
| Total length crankpin ignition side | 67.5 mm |
| Ø crank webs | 69.8 mm |
| Ø Connecting rod eye | 15 mm |
| Ø Bearing seat (clutch side) | 17 mm |
| Ø Bearing seat (ignition side) | 17 mm |
| Thread length | 8.5 mm, 12 mm |
| Dimension needle bearing | 12 / 15 x 14.7 mm (axe 12) |
| Wide crank webs | 34.3 mm |
| Length 1st paragraph | 19 mm |
| Length 2nd paragraph | 18.5 mm |
| Ø 1st step (on the coupling side) | 17 mm |
| Ø 2nd shoulder (on the clutch side) | 15 mm |
| Length of shoulder (ignition side) | 18 mm |
| Weight | 913 g |
| Number of gears | 2 pcs |
| Puch spare part no. | 350.7.10.015.0, 349.1.10.215.0 |
Suitable for the following models
| Puch | Z50 (X30 Sport) Z50 (X30 Velux) 2-Gang MS, MV, MV50 |
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