... eccentricity 7(mm) We are supplier of motorcycle parts and scooter parts,our part include engine parts(cylinder kit,crankshaft,carburetor ... ,pistonkit,gasket...),electric parts(CDI,ignition coil,relay,horn,lockset...),brake parts(brake pad,brake ... lever..),Cables... Contact with us pls for more infomation. A- GY6-125/150 high quality engine crankshaft