58mm high quality original type piston ring + all oversizes. For all Lambretta models that use a 58mm piston with 2.5mm thick rings (some early production and non-original pattern type pistons have these thicker type rings). Sold singularly.
Choice of available sizes:
58.0mm x 2.5mm
58.2mm x 2.5mm
58.4mm x 2.5mm
58.6mm x 2.5mm
58.8mm x 2.5mm