Full-flange crankshaft suitable for Sachs 50/3 and 50/4 3 and 4-speed engines
High-quality and precisely fitting racing crankshaft, which has proven itself in various load tests up to 19,000 rpm.
The large balancing holes in the flanges were sealed with aluminum inserts for maximum pre-compression.
Dimensions of the crankshaft:
- Total length of clutch-side crankpin: 43.2 mm
- Total length of clutch-side crankpin: 69.7 mm
- Length of 1st shoulder (clutch-side): 21 mm
- Length 2nd shoulder (clutch side) 13.7 mm
- Ø 1st shoulder (clutch side): 17 mm
- Ø 2nd heel (clutch side): 12 mm
- Thread (coupling side): MF10x1 mm
- Length of shoulder (on coupling side): 29.6 mm
- Ø shoulder (on end face): 17 mm
- Thread (on end face): MF10x1 mm
- Ø crank webs: 85 mm
- Width crank webs: 29.9 mm
- Ø connecting rod eye top: 16 mm
- Ø connecting rod pin bottom: 16 mm
- Length of connecting rod (center-to-center): 85 mm
- Stroke: 42 mm
- Weight (incl. connecting rod): 1067 grams
- Dimension needle bearing: Ø 14 / 18 x 15.8 mm (axe 14)
Note: Difference to the Sachs 50/2 crankshaft: the diameter of the cheek journals is larger (L17 bearings must be used).
Original Sachs spare part number: 0286 203 100
Quality product from the Portuguese manufacturer Rito.
| Dimension needle bearing | 14 / 18 x 15.8 mm (axe 14) |
| Manufacturer | Rito |
| Material | Steel |
| Cheek type | Full cheeks |
| Crankshaft stroke | 42 mm |
| Connecting rod length center-center | 85 mm |
| Thread type | MF10x1 (fine pitch thread) |
| Total length of crankpin on clutch side | 43.2 mm |
| Thread length | 8 mm, 13 mm |
| Total length crankpin ignition side | 69.7 mm |
| Ø crank webs | 85 mm |
| Ø Connecting rod eye | 18 mm |
| Weight | 1067 g |
| Ø piston pin (B) | 14 mm |
| Ø Bearing seat (clutch side) | 17 mm |
| Ø Bearing seat (ignition side) | 17 mm |
| Area of application | High End |
| Wide crank webs | 29.9 mm |
| Length 1st paragraph | 21 mm |
| Length 2nd paragraph | 13.7 mm |
| Ø 1st step (on the coupling side) | 17 mm |
| Ø 2nd shoulder (on the clutch side) | 12 mm |
| Length of shoulder (ignition side) | 29.6 mm |
| Number of gears | 3 pcs, 4 pcs |
| Sachs | 50/3 50/4 - MLFB (2.6 PS) , LKH (4.5 PS) |
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