The NRG300 is the flagship distance of the Niederrhein Gravel series — a 300-kilometre gravel ultra across the exposed flat landscapes of the Lower Rhine near Kalkar on the first day of October. The route keeps to approximately 70% gravel, routing through the network of dike roads, agricultural tracks, and river-side paths that thread between the Rhineland towns and the Dutch border. At 300 kilometres on terrain with almost no elevation gain to provide rhythm or natural recovery, the NRG300 demands precise pacing and strong mental endurance across what is typically a 15 to 24-hour effort. The event's particular character comes from the landscape itself: the Lower Rhine at harvest time, with enormous skies, long straight roads disappearing into the distance, and the ever-present wind that riders must factor into every routing decision. Unlike the mountain gravel events that dominate the European ultra calendar, the NRG300 proves that the simplest landscapes can produce the most psychologically demanding challenges. The October timing means the days are shortening — riders who aim for a fast finish will be riding entirely in daylight, while those who need more time will experience the particular loneliness of navigating flat farmland in the dark.
Based on this event's terrain, difficulty and riding style.
Riders taking on Niederrhein Gravel NRG300 will cover 300 km and climb roughly 4000 m over the course of the route.
A Gravel Bike is the right tool for Niederrhein Gravel NRG300. Set it up with 45-50mm Tubeless rubber and gear it low — a 38-40T (1x) chainring and 10-51T cassette will keep you spinning on the steeper sections.
Expect a Intermediate-tier challenge at Niederrhein Gravel NRG300 — fairly flat climbing over rough, technical terrain for a good stretch of the route, with cool weather typical for the time of year.
Niederrhein Gravel NRG300 runs on October 3, 2026, placing it firmly in the autumn riding season, as conditions start cooling but daylight hours are shrinking.
Niederrhein Gravel NRG300 runs primarily on gravel, and we'd recommend 45-50mm Tubeless tires to handle it comfortably.