Supergrevet Basel-Kleve

Supergrevet Basel-Kleve is a 750-kilometer gravel ultra-cycling event connecting Basel, Switzerland, to Kleve, a German town near the Dutch border, part of the broader Supergrevet series of European city-to-city gravel routes. The route traces a long north-south corridor along the Rhine River, passing through Switzerland, likely through France's Alsace region, and the length of western Germany before reaching Kleve in the far northwest near the Netherlands. This Rhine-adjacent routing gives the event a strong geographic throughline, following one of Europe's most historically and economically significant rivers for much of its length.

Basel sits at the convergence of Switzerland, France, and Germany, making it a fitting starting point for a route that crosses multiple national borders and linguistic regions on its way north. Kleve, the finish city, sits in the Lower Rhine region close to the Dutch border, an area of flat agricultural land and river delta terrain that contrasts sharply with the more mountainous Swiss and southern German terrain near the route's start. The September timing offers stable early autumn conditions for the long north-south traverse.