Crankshaft SCHMITT Dampfhammer 48mm stroke, 90mm conrod, 80-110cc for Simson S51, S70, S83

Schmitt "Dampfhammer" crankshaft for racing and engines with high peak power. This premium crankshaft has 48mm stroke and a 90mm CNC machined forged connecting rod. Schmitt defines the range of application of this crankshaft on Big Bore engines from 80-110cc displacement suitable for Simson S51, S70, S83 with M500, M700 engine cases.
The technical highlights at a glance:

• optimized pre-compression for a wide torque band, suitable from 80cc to 110cc displacement
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• optimal balance factor of 65%
• High strength, yet lightweight (.
• Larger silver plated piston pin bearing 12x17x15mm for 12mm piston pin included
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• The upper and lower needle bearings are optimally lubricated by several extra large holes in the connecting rod
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• Expanded crankshaft stub on the clutch side for an optional 3rd crankshaft bearing
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• Lower guided connecting rod with again reinforced interference fit and larger connecting rod eye
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• 10-15% heavier than stock crankshaft
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• Rotation speed resistant >15,000 rpm
• manufactured from 14NiCrMo13 steel
• Developed in Germany- manufactured in Europe