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OTTOPUNTOUNO SHF00100 Crankshaft Gilera 50 Typhoon 1993-2012

SKU 1805 SHF00100 Category Brand

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Descrtption

OTTOPUNTOUNO crankshaft for GILERA/PIAGGIO 50cc 2 for GILERA/PIAGGIO 50cc 2-stroke AC/LC, stroke: 39.3mm, connecting rod: 85.0mm, piston pin 12mm, for PIAGGIO/C-One/RC-One Insieme crankcase to the cylinder and the piston, the crankshaft represents the beating heart of any internal combustion engine. It is among the hardest working components and the conversion of the piston stroke into a rotary motion places the highest demands on both the quality and the attention paid during construction. The crankshaft should also be well balanced to reduce any unwanted vibrations and oscillating mass kept to a minimum to support efficient delivery of the power created by the engine. The large head bearing rotates at the same speed as RPM engines, receives lubrication from the gasoline/two-stroke diesel fuel mixture, and must withstand two abrupt changes in piston direction for each revolution of the engine. The crankpin, connecting both shanks of the crankshaft with the connecting rod, must be pressed into the cores with a certain distance from the openings in the cores. If this connection is not strong enough, the crankshaft can spin and the crankshaft webs become misaligned and seize. To ensure that the large end bearing receives sufficient lubrication, the large end of the connecting rod should be provided with slots to facilitate this. These crankshafts are produced for OTTOPUNTOUNO in Italy and meet all the requirements listed above. They have concentrated their efforts on providing the highest quality combined with proven technological features. This crankshaft includes a very high quality connecting rod and are made stronger with an intensive polishing procedure which provides a more stable molecular structure. The smooth, polished sides of the connecting rod also help reduce turbulence. The polished connecting rods have also been optimized with a weight reduction. They have a gas flow profile and have been modified around the large end to improve bearing lubrication. OTTOPUNTOUNO R-18 crankshaft for original PIAGGIO or C-One engine casing. Stroke: 39.3mm Connecting rod: 85mm External diameter: 73mm Width: 41mm Weight: 1.6kg

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