Crankshaft 2Fast 39,3mm stroke / 85mm conrod Minarelli horizontal

Description Racing crankshaft 2Fast Minarelli horizontal / AeroxCrankshaft 39.3mm stroke / 85mm connecting rod 2Fast Minarelli horizontal, high-end racing crankshaft for demanding tuners from the Italian tuning company 2Fast, specially designed for 70cc setups.This crankshaft was developed specifically for the 2Fast 70cc cylinder and guarantees top performance in that setup. It can of course also be used with other racing cylinders with matching stroke.The crankshaft has 39.3mm stroke (original) and an 85mm connecting rod.With a different small end bearing (17mm outer diameter), cylinders with 13mm or 14mm piston pins can also be fitted.Note: the crankcase must be slightly machined so that the crankshaft and crank webs fit. Web diameter is 75mm.Technical information 2Fast Racing crankshaftFor Minarelli horizontal - Yamaha Aerox etc.Stroke 39.3mm (original)Connecting rod 85mm - crankpin 18mmSmall end bearing 12x17x16mmCrankcase machining requiredWeight 1470g Questions about the product

• Brand: 2Fast
• SKU: TFAST084
• 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