Developed in the late 1970s, these featured top quality sealed hubs by Maillard,  special stainless steel aero 'T' headed straight pulls spokes and extruded aluminum rims. Although not "aero" to the degree later rims would become, these were surely the precursor to an entire shift towards aerodynamics in bicycles. 

    Hub flanges were available in high polish, black or grey anodized. The hub centers were uniformly high polished. Both road and track were available.

    William Lewis Imports of Texas was the importer for the USA. Here is an instruction sheet produced by that company.

Updated 9.18.2016                    click on images to view larger versions

ROVAL wheel set with black hub flanges
 courtesy eBay seller Vintage NOS Bicycle Parts