Description 2Fast Crankshaft Piaggio for Polini and Malossi Tuning CrankcasesHigh-end racing crankshaft from 2Fast with 39.3mm stroke and 90mm conrod for Piaggio engines, specifically developed for the 2Fast FL70 cylinder, which in turn is designed for Malossi C-One / RC-One crankcases.The crankshaft fits Malossi C-One / RC-One and Polini P.R.E. engine cases, but can also be used with standard Piaggio cases. In that case, additional clearance must be machined to fit the large 74mm crank webs.By using a different small end bearing (with 17mm outer diameter), the crankshaft is also compatible with cylinders using 13mm or 14mm piston pins.Technical details – 2Fast Racing CrankshaftFor Polini and Malossi tuning crankcases39.3mm stroke (OEM spec)90mm conrodSmall end bearing: 12x17x15mmCrank web diameter: 74mmIncludes 20mm oil seal (variator side)Weight: 1500g Questions about the product

• Brand: 2Fast
• SKU: TFAST070
• Availability: In stock

Notes and Safety How to change a crankshaft?The crankshaft is one of the main components of the engine and is responsible for the smooth operation of motorcycle, scooter and moped, whether with two-stroke or four-stroke engine. The longevity of the engine depends not only on the proper condition of the crankshaft, but also on the fact that it is properly mounted.For a correct installation of the crankshaft, we recommend our tutorial: Crankshaft disassembly and assembly.How can I tell if my crankshaft is Damaged?A broken crankshaft causes metallic noises, unusual vibrations, leaking oil seals and drastically reduces the performance of the two-wheeler. In any case, the vehicle must be stopped