Start with the complete helmet label. The live ClearLine Moto listing names Arai RAM-X, SZ-R Evo, SZ-R and VZ-Ram. VAS and VAS-Z are visor part codes, so they are a separate check rather than a substitute for the helmet model. Compare the side profile, mounting holes, centre vent and lower contour with the visor already fitted, then review clear or light black. Aftermarket visor; check the individual marking, intended use and local rules. Exact listing: https://clearlinemoto.com/product/arai-ram-x-sz-r-sz-r-evo-more-replacement-visor-2/