Malossi MHR Crankshaft for Yamaha (12mm)


Malossi MHR High Compression Crankshaft for Yamaha (12mm)

The Malossi MHR Crankshaft offers a high compression, mid-race solution that can take a whole lot more punishment than the factory Yamaha crank.

This rank features a ‘full circle’ shape for high compression, as well as a 10% increased inertial mass. All aspects of this crank are increased in strength with high strength materials having been used. Designed to take abuse, and keep asking for more!

*Important note* The small end of this crank is increased from the factory 10mm to 12mm for increased strength. Malossi make interchangable 10mm and 12mm pistons, please check the piston you are intending to use with this crank prior to ordering.

In Stock at Euro Warehouse (Ships in 8-12 days)

SKU: M538009 Categories: , Tag:


Malossi MHR High Compression Crankshaft for Yamaha (12mm) stroke 39.2 mm.

  • The crankshaft is the heart of the endothermic engine.
  • All aspects of engine performances start from the crankshaft.
  • It is not possible to obtain good engine performance and reliability unless a top-quality crankshaft is fitted.
  • This is why Malossi produces only the very best in crankshafts.
  • Inertial mass increased by 10%.
  • Reinforced connecting rod to withstand higher loads.
  • Crankshaft drive side cross section area increased by 10% with consequent greater resistance.
  • The diameter of the drive side oil seal has been increased from 19 to 20mm so as to increase the resistance of the shaft.

*Performance scooter parts do not come with a warranty*