Description
Crankshaft Simson Drehfreund
Crankshaft Schmitt "Drehfreund" for Simson S51, S53, S70, S83, SR50, SR80, KR51/2 Schwalbe. Reinforced crankshaft from Schmitt "Drehfreund", suitable for Simson mopeds with M541, M741 engine.
The precision made crankshaft made in Germany has 44mm stroke with 85mm connecting rod. The lightweight, polished connecting rod comes with a high quality, reinforced small end bearing. The connecting rod is guided by the big end bearing with copper thrust washers.
Concentricity deviation and bearing seat fit comply with the latest measurement and manufacturing standards. Special attention was paid to the accuracy of fit of the ignition cone in the original ratio of 1:5.
The crankshaft runs noticeably smoother than original crankshafts, even at high speeds. The high-revving Drehfreund (Drehen = revving, friend = Freund) crankshaft from Schmitt is suitable for both original setups and high-performance, high-revving tuning engines.
Specifications Simson crankshaft Drehfreund:
- Stroke: 44mm
- Connecting rod length: 85mm
- Reinforced needle bearing
- Large copper thrust washers
- Polished connecting rod
- For original and tuned engines
- Suitable for Simson with M541, M741 engine like Simson S51, S53, S70, S83, SR50, SR80, KR51/2 Schwalbe
How to change a crankshaft?
The crankshaft is one of the main components of the engine and is responsible for the smooth operation of motorcycle, scooter and moped, whether with two-stroke or four-stroke engine. The longevity of the engine depends not only on the proper condition of the crankshaft, but also on the fact that it is properly mounted.
For a correct installation of the crankshaft, we recommend our tutorial: Crankshaft disassembly and assembly.
How can I tell if my crankshaft is Damaged?
A broken crankshaft causes metallic noises, unusual vibrations, leaking oil seals and drastically reduces the performance of the two-wheeler. In any case, the vehicle must be stopped immediately to prevent the damage from getting worse.
Please note that whenever the crankshaft is changed and serviced, you'll have to install new crankshaft bearings.
| Crankshaft Schmitt Drehfreund Simson | |
|---|---|
| Article no. | MOF-STT39569 |
| EAN | 4057237602688 |
| Weight | 0,20 kg |
| Series | Drehfreund |
| Brand | Schmitt |
| Product type | Crankshaft |
| Piston pin | 12 mm |
| Stroke | 44 mm |