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crankshaft Schmitt Drehfreund 44mm stroke, 85mm conrod, 80-110cc for Simson S51, S70, S83, M500, M700

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crankshaft Schmitt Drehfreund 44mm stroke, 85mm conrod, 80-110cc for Simson S51, S70, S83, M500, M700

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SKU

RPSTT49362

Special Price €202.00 Regular Price €252.00

Dispatching between 17.04.2026 and 20.04.2026

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Exclusive dealer product. This item can only be purchased from one of our official dealerships.
You can find a retailer near you here: Dealer Locator

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 80-110cc displacement suitable for Simson S51, S70, S83 with M500, M700 engine cases.

The technical highlights at a glance:

fits from 80cc to 110cc displacement.
optimized pre-compression for a wide torque band, narrower cheeks compared to the steam hammer version STT49363
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

More Information

More Information
Weight	1.530000
Barcode EAN13	4057233986898
Brand	SCHMITT
Availability	In the central warehouse
Supplier reference	STT49362
Outlet	No
Ships in	4-5 business days
Campains	Hinnagarantii
Fitment chart (old)	<!-- algus kataloog 2 --> <b>Kataloog 2 sobivused:</b><br><table><tr><th><b>Tootja</b></th><th><b>Mudel</b></th></tr><tr><td>Simson</td><td>KR51/2 Schwalbe [M531, M541]</td></tr><tr><td>Simson</td><td>S51 / S51 Enduro [M531, M541, M542]</td></tr><tr><td>Simson</td><td>S53 / S53 Enduro [M543]</td></tr><tr><td>Simson</td><td>S70 / S70 Enduro [M741]</td></tr><tr><td>Simson</td><td>S83 / S83 Enduro</td></tr><tr><td>Simson</td><td>SD50 Albatros [M543]</td></tr><tr><td>Simson</td><td>SR 50 [M531, M533, M541, M542, M543]</td></tr><tr><td>Simson</td><td>SR 80 [M741, M742, M743]</td></tr></table><!-- lopp kataloog 2 --><br>