Lambretta Crankshaft and layshaft spacer shim, 25mm ID, 0.5mm, MB MRB0619M05

 This is a special crank shim to fit on the crankshaft between the crank and drive bearing it will space the crank away from the drive plate which sometimes can catch.  Or replace the drive plate to a MB one MBP0085  It also will space up the layshaft if fitted between the layshaft and bearing to tighten the main gear shim if there is a miss match of parts.  Size 0.5mm

MRB0619M05