The legendary full cheek crankshaft suitable for mopeds / mopeds with Sachs 50/3 engines (not to be confused with 503 engines), which have L17 crankshaft bearings.
High-quality, precision-fit crankshaft weighing 1062 grams, which has proven itself in various load tests.
This crankshaft was designed for use in engines with a large increase in performance.
All balancing holes in the cheeks have been sealed with aluminum inserts for maximum pre-compression.
The solid connecting rod is equipped with a more stable 16 mm connecting rod pin, which is hollow on the inside for better balancing.
Dimension:
- Total length of clutch-side cheek pin: 43 mm
- Total length of clutch-side cheek pin: 69.9 mm
- Ø 1st shoulder (clutch-side): 17 mm
- Ø 2nd shoulder (clutch side): 12 mm
- Thread on coupling side: MF10x1 mm
- Ø Heel (coupling side): 17 mm
- Thread on the Zünd side: MF10x1 mm
- Ø crank webs: 85 mm
- Width of crank webs: 30.1 mm
- Ø connecting rod eye top: 15 mm
- Ø connecting rod pin bottom: 16 mm
- Conrod length: 85 mm
- Stroke: 42 mm
- Weight (incl. Connecting rod): 1062 grams
The needle bearing (12/15 x14.7 mm) is included in the scope of delivery.
You can find the matching bearings and oil seals in the accessories section.
Installation tip:The transition between the crank webs and cheek pins is provided with a slight radius for reinforcement. To ensure clean spacing, the first spacer washer should be provided with a slight chamfer on the left and right. This then lies neatly over the chamfer and centers itself perfectly. The other spacers can be used as normal.
You can find spacers and the matching bearings in the accessories section.
Quality product from the Portuguese manufacturer Rito.
Details
| Dimension needle bearing | 12 / 15 x 14.7 mm (axe 12) |
| Manufacturer | Rito |
| Material | Steel, Aluminum |
| Cheek type | Full cheeks |
| Crankshaft stroke | 42 mm |
| Thread type | MF10x1 (fine pitch thread) |
| Connecting rod length center-center | 85 mm |
| Weight | 1062 g |
| Total length of crankpin on clutch side | 43 mm |
| Total length crankpin ignition side | 69.9 mm |
| Ø crank webs | 85 mm |
| Ø Connecting rod eye | 15 mm |
| Ø piston pin (B) | 12 mm |
| Area of application | Tuning, Racing |
| Wide crank webs | 30.1 mm |
| Length 1st paragraph | 17 mm |
| Length 2nd paragraph | 12 mm |
Suitable for the following models
| Sachs | 50/3 50/4 - MLFB (2.6 PS), LKH (4.5 PS) |
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swiing crankshaft High End (Version 2.0) | Sachs 503 2AL, 2BL
Manufacturer: swiing · Area of application: High End · Area of application: Racing · Area of application: Tuning · Material: Aluminum · Cheek type: Full cheeks · Material: Steel · Crankshaft stroke: 42 mm · Connecting rod length center-center: 85 mm · Thread length: 8 mm · Thread length: 11 mm · Total length of crankpin on clutch side: 43.5 mm · Total length crankpin ignition side: 63.4 mm · Ø crank webs: 85 mm · Ø piston pin (B): 12 mm · Ø Connecting rod eye: 15 mm · Ø Bearing seat (clutch side): 15 mm · Thread type: MF10x1 (fine pitch thread) · Ø Bearing seat (ignition side): 15 mm · Dimension needle bearing: 12 / 15 x 14.2 mm (axe 12) · Wide crank webs: 30.1 mm · Length 1st paragraph: 21 mm · Length 2nd paragraph: 13 mm · Ø 1st step (on the coupling side): 15 mm · Ø 2nd shoulder (on the clutch side): 12 mm · Length of shoulder (ignition side): 35 mm · Number of gears: 2 pcs
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swiing crankshaft High End (Version 2.0) | Sachs 50/2, 50/3
Manufacturer: swiing · Area of application: High End · Cheek type: Full cheeks · Crankshaft stroke: 42 mm · Connecting rod length center-center: 85 mm · Total length of crankpin on clutch side: 40.7 mm · Weight: 1038 g · Total length crankpin ignition side: 63.4 mm · Ø crank webs: 85 mm · Ø piston pin (B): 12 mm · Ø Connecting rod eye: 15 mm · Ø Bearing seat (clutch side): 15 mm · Thread type: MF10x1 (fine pitch thread) · Ø Bearing seat (ignition side): 15 mm · Dimension needle bearing: 12 / 15 x 14.2 mm (axe 12) · Wide crank webs: 30.1 mm
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Collection only possible with online purchase and appointment.
