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Find here from the Italian manufacturer Ottopuntouno 8.1, the 47mm stroke crankshaft and 100mm connecting rod for Polini PRE and 8.1 Fireblade Version 1.
Hyper Racing type, this crankshaft is made of high quality steel and has a 100mm connecting rod held by an 18mm crank pin. The crankshaft masses measure 84mm in diameter and have tungsten inserts ensuring proper balancing for the 8.1 100cc cylinder. The crankshaft is initially designed to fit with an Ottopuntouno cylinder kit but will of course fit other 100cc cylinders.
This R-18 version is designed to fit into a Polini PRE and 8.1 Fireblade, 2Fast Passion engine case, but you will have to mill the engine case to accommodate the crankshaft masses.
Needle cage: 14x17x16.6mm Connecting rod: 100mm Stroke: 47mm Diameter of the masses: 84mm Weight: 2.05kg
Crankshaft Ottopuntouno 8.1 100cc for Fireblade Version 1 // Polini PRE (47mm/100mm)
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