Video Description Stage6 R/T high-end crankshaft with 85mm connecting rodStage6 R/T crankshaft with 85mm connecting rod for Piaggio / Gilera / Aprilia / Derbi / Vespa 50cc, high-end crankshaft for racing use.Strengths Stage6 R/T racing crankshaftElaborately balanced high-end racing full-flange crankshaft with light alloy inserts.The tuning crankshaft is characterized by precise manufacturing and adherence to tight tolerances. The CNC-milled connecting rod is extremely resistant and offers maximum strength for use in racing engines, while at the same time optimizing the flow characteristics.The very precise balancing via light metal inserts prevents strong vibrations and ensures optimally smooth engine running. The crankpin measures 18mm instead of 16mm, which naturally increases durability. It goes without saying that the needle bearing supplied is also of the highest quality.Compatibility and installation of the S6 racing shaftThe Stage6 R/T crankshaft with 85mm connecting rod can only be used with cylinders that are designed for use with an 85mm connecting rod. The perfect complement is the Stage6 R/T 70cc cylinder for Piaggio.If you ride a cylinder with 80mm original connecting rod, the Stage6 5mm cylinder spacer must be used. The spacer is simply used as an additional base gasket and the original stud bolts are replaced by longer ones.Plug & Play installation - the Stage6 R/T shaft can be installed without any further modifications, without the need to mill the engine case. We recommend using a set of new crankshaft bearings.Technical specifications Stage6 R/T crankshaft Piaggio:Tuning level: High-end RacingConnecting rod length: 85mm (+5mm longer than original)Stroke: 39mm (Original)Crankpin: 18mmIncl. piston pin bearing 12x17x15mmIncl. 2x crankshaft nut 2x M12x1.25For scooters with 50cc Piaggio engine (LC and AC) Questions about the product

• Brand: Stage6 R/T
• SKU: S6-7914001
• 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