Description Malossi MHR RHQ Racing Crankshaft Yamaha AeroxHigh-quality MHR crankshaft from Malossi for Minarelli horizontal engines — ideal for entry-level tuning and race setups. This is a full-circle HPC crankshaft (High Primary Compression), designed to increase pre-compression for improved cylinder filling and a shift of the powerband into higher RPM ranges.Built for up to 16,000 rpm, it features top-tier materials and precise craftsmanship — classic Malossi performance. Best paired with 70cc racing cylinders, including high-end configurations.Specifications – Malossi MHR Crankshaft Minarelli horizontalFor Minarelli horizontal with 10mm piston pinStroke: 39.3 mm (standard)Connecting rod: 80 mm (standard)Includes small end bearing 10x14x13mm Questions about the product

• Brand: Malossi
• SKU: M537891
• 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