crankshaft Schmitt Drehfreund 44mm stroke, 85mm conrod, 50-75cc for Simson S51, S70, S83, M500, M700
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crankshaft Schmitt Drehfreund 44mm stroke, 85mm conrod, 50-75cc for Simson S51, S70, S83, M500, M700
crankshaft Schmitt Drehfreund 44mm stroke, 85mm conrod, 50-75cc for Simson S51, S70, S83, M500, M700
crankshaft Schmitt Drehfreund 44mm stroke, 85mm conrod, 50-75cc for Simson S51, S70, S83, M500, M700
crankshaft Schmitt Drehfreund 44mm stroke, 85mm conrod, 50-75cc for Simson S51, S70, S83, M500, M700
crankshaft Schmitt Drehfreund 44mm stroke, 85mm conrod, 50-75cc for Simson S51, S70, S83, M500, M700
Item Nr.:
STT49351
Schmitt
Add on wish list
$355.71
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Crankshaft Schmitt "Drehfreund" for racing and engines with high peak power. This premium crankshaft has 44mm stroke and a 85mm CNC machined forged connecting rod. Schmitt defines the range of application of this crankshaft on Big Bore engines from 50-75cc displacement suitable for Simson S51, S70, S83 with M500, M700 engine cases.

The technical highlights at a glance:
  • fits from 50cc to 75cc displacement.
  • optimized pre-compression for a wide torque band, narrower cheeks compared to the steam hammer version STT42038
  • .
  • optimal balance factor of 65%
  • High strength, yet lightweight (<70g) forged connecting rod- CNC machined, for large 17mm needle bearing on piston pin
  • .
  • Larger silver plated piston pin bearing 12x17x15mm for 12mm piston pin included
  • .
  • The upper and lower needle bearings are optimally lubricated by several extra large holes in the connecting rod
  • .
  • Expanded crankshaft stub on the clutch side for an optional 3rd crankshaft bearing
  • .
  • Lower guided connecting rod with reinforced interference fit and larger connecting rod eye
  • .
  • Lighter than the original crankshaft
  • .
  • Rotation speed resistant >15,000 rpm
  • manufactured from 14NiCrMo13 steel
  • Developed in Germany- manufactured in Europe
Item Nr.:
STT49351
Ready for shipment:
Out Of Stock
manufacturer:
Schmitt
Weight:
0.00 kg
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