Muur van Geraardsbergen
The Muur van Geraardsbergen (English: Wall of Geraardsbergen/Grammont, is a 90 m high narrow road with cobblestones located in Geraardsbergen, Belgium. It is also known as Kapelmuur, Muur-Kapelmuur or simply the Muur. The climb starts near the river Dender at 18 m and reaches the top of the Oudenberg at 110 m. This climb is famous for being part of the route of Ronde van Vlaanderen.
Ronde van Vlaanderen
The Muur van Geraardsbergen is the penultimate climb in the Ronde van Vlaanderen, 16 km from the finishing line. It has been part of the race since 1950, although not consistently until 1981. The climb has a length of 1075 meters with an average grade of 9.3% and some sections around 19.8%