Description
Crankshaft Simson Dampfhammer
Crankshaft Schmitt Dampfhammer with 48mm stroke / 90mm connecting rod for Simson S51 / S70 / S83 / KR51/2 / SR50. Extra reinforced "Super Performance" Racing crankshaft from Schmitt Dampfhammer, suitable for Simson S51, S70, S83 with M500, M700 engine cases for Big Bore engines with 80cc - 110cc displacement.
The made in Germany crankshaft has 48mm stroke, a 90mm connecting rod and has Tungsten counterbalance inserts to ensure perfect balance. The CNC machined forged connecting rod has two additional lubrication holes and is guided with silver thrust washers. Included is a high quality, enlarged silver cage bearing (17mm).
And another treat for tuners: on the clutch side, the crankshaft stub has been enlarged to allow for the installation of an optional 3rd crankshaft bearing.
Every component of the Dampfhammer crankshaft is designed for maximum performance. The materials are very high quality, the manufacturing precise. All critical areas have been adequately reinforced to ensure smooth running and optimum rigidity even at high rpms. Runout and bearing seat fit meet the latest measurement and manufacturing standards. Pre-compression is optimized to provide a wide power band.
The Dampfhammer crankshaft from Schmitt is suitable for powerful big bore engines with 80cc - 110cc displacement and is can withstand speeds up to 15,000 rpm.
Specifications Simson crankshaft steam hammer:
- Balance factor: 65%
- Connecting rod: 90mm
- Stroke: 48mm
- Larger silver plated piston pin bearing 12x17x15mm
- CNC machined forged connecting rod with larger connecting rod eye and extra large lubrication holes
- RPM resistant up to 15,000 rpm
- For Big Bore tuning setups 80 - 110cc
- Suitable for Simson with M500, M700 engine cases (Simson S51, S53, S70, S83, SR50 etc.)
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 Dampfhammer 48mm stroke / 85mm conrod Simson | |
|---|---|
| Article no. | MOF-STT42039 |
| EAN | 4057233982074 |
| Weight | 1,20 kg |
| Series | Dampfhammer |
| Brand | Schmitt |
| Product type | Crankshaft |
| Piston pin | 12 mm |
| Stroke | 48 mm |
| Conrod length | 85 mm |