Along with pretty much every other rim manufacturer, Rolf’s aluminum road rim are getting wider. Pretty much across the board, if it’s aluminum and considered a road bike rim, that means it will now be running a 19mm internal width.
That includes both rim and disc brake models like the Vigor RS, Echelon, Elan Alpha, and Alspin. Many of those wheels also see improvements for 2018 with the upgrade to their T2 high engagement freehub system which offers a 48 tooth drive ring with three pawls.