Description: The BGM 55mm crankshaft is an excellent choice for those who want to get the most out of their Piaggio 125/180cc engine block.
With a 90 mm crank web and a 110 mm connecting rod, this crankshaft delivers a broader powerband and higher peak power – ideal for sporty and race-oriented applications.
Please note: This crankshaft is supplied without a spacer plate. – Are you using a WJ inner/outer head? Then you need a 4 mm spacer plate. – Are you using a head from another tuner with a squish band that is less than 2 mm deep? Then you need a 5 mm spacer plate.
For optimal performance, we recommend adjusting your cylinder to this stroke. This way you can perfectly tune the port timing and utilize the full potential of your setup.