Crankshaft Athena 43Mm Stroke 85Mm Conrod 12Mm Pin Minarelli Vertical

Sport crankshaft Minarelli vertical Athena long-stroke crankshaft 43mm stroke / 85mm connecting rod / 12mm piston pin for Minarelli vertical. Originally developed for the Athena 80cc SPORT PRO cylinder. features athena long-stroke crankshaft: With a stroke of 43 mm and a connecting rod of 85 mm, this crankshaft offers a perfect balance between performance and endurance. The connecting rod with lubrication holes minimizes piston wear and improves lubrication. It is ideal for use with the Athena SPORT PRO 80cc cylinder, but can also be used for other cylinders with a long stroke and 12 mm piston pin. Note: Machining of the crankcase is required for installation. Technical data tuning crankshaft Yamaha BWs: Stroke: 43 mm (longer than original) Reinforced connecting rod: 85 mm Piston pin: 12 mm. Reinforced small end bearing: 12x16x15mm. Material: Hardened steel Bearing seat: 20 mm