Radreisen Online is a German cycling holiday search portal that brings together more than 500 tours from travel operators in Europe and around the world. Its searchable listings can be filtered by destination, region, trip duration, difficulty, travel style and route format, helping visitors find guided or independent holidays suited to their interests. Options include leisure and family cycling, e-bike trips, mountain biking, road and gravel cycling, cycling with luggage transport, and bike-and-boat journeys.

Destinations range from German river routes and regional trails to countries across Europe and farther afield, including Asia, Africa and the Americas. The site also features travel inspiration, route and destination information, trip reports, photos, videos and audio, alongside practical advice on preparing for a cycling holiday, bike types, equipment, train travel and route planning. Additional services include a newsletter, travel vouchers and a partner program for tour operators and businesses that want to offer cycling trips