Full-flange crankshaft for Puch E50 engines, which are installed in Puch Maxi S / N mopeds / mopeds.
The crankshaft is made of forged steel, which makes it stronger and more resilient than conventional standard crankshafts.
For perfect balancing and pre-compression of the crankshaft, the balancing bores are sealed with tungsten plugs.
The connecting rod eye has a diameter of 17 mm. This means that different needle bearings can be used if a 12, 13 or 14 mm piston pin is used.
Due to the stroke of only 39.3 mm, almost any scooter cylinder can be installed on the Puch E50 engine with the help of appropriate spacers.
Thanks to the shorter stroke, much higher speeds can be achieved, which results in various advantages, especially with the 1-speed automatic engine.
It is also possible to build a 50 cc quadrathuber with this racing crankshaft.
Total length of clutch-side cheek pin: 75 mm
Total length of clutch-side cheek pin: 67 mm
Ø 1st shoulder (clutch side): 22 mm
Ø 2nd shoulder (clutch side): 17 mm
Ø 3rd shoulder (clutch side): 15 mm
Ø Heel (clutch side): 17 mm
Ø Crank webs: 70 mm
Width of crank webs: 34 mm
Ø Connecting rod eye: 17 mm
Conrod length: 90 mm
Stroke: 39.3 mm
Attention: The needle bearing is not included in the scope of delivery. This must be ordered separately.
The bearing set for the old model with 12 mm wide bearing inner ring can be used for the crankshaft.
Details
| Area of application | Racing |
| Cheek type | Full cheeks |
| Crankshaft stroke | 39.3 mm |
| Connecting rod length center-center | 90 mm |
| Total length of crankpin on clutch side | 75 mm |
| Total length crankpin ignition side | 67 mm |
| Ø crank webs | 70 mm |
| Ø piston pin (B) | 12 mm, 13 mm, 14 mm |
| Ø Connecting rod eye | 17 mm |
| Ø Bearing seat (clutch side) | 17 mm |
| Ø Bearing seat (ignition side) | 17 mm |
| Wide crank webs | 34 mm |
Suitable for the following models
| Puch | E50 |
Accessories & related products
Rito Crankshaft Racing | Puch E50
Manufacturer: Rito · Area of application: Racing · Material: Steel · Area of application: Tuning · Cheek type: Full cheeks · Crankshaft stroke: 43 mm · Thread type: MF10x1 (fine pitch thread) · 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 piston pin (B): 12 mm · Ø Connecting rod eye: 15 mm · Weight: 970 g · Ø Bearing seat (clutch side): 17 mm · Ø Bearing seat (ignition side): 17 mm · Thread length: 11 mm · Thread length: 14 mm · Dimension needle bearing: 12 / 15 x 15 mm (axe 12) · Wide crank webs: 34 mm · 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 · Number of gears: 1 pcs
CHF 153.90
Collection only possible with online purchase and appointment.
