Bike ride on Saturday or Sunday? (Vienna)

My name is Rick Schumacher. I'm American and am relatively new to Vienna (been here a couple of months), and mein Deutsch ist sehr schlecht, but if anyone is interested in going for a bike ride either tomorrow or Sunday and would like some company, I would love to join you. I was thinking of either a ride through the Wachau (taking train to Melk and riding perhaps riding to Krems or perhaps Tulln or Stockerau area and returning to Vienna via train - not sure if I can make it all the way to Vienna. Melk to Tulln is 80km. If anyone is interested, please respond. Thanks!!