if your going to Rinteln and to be fair there is not much to see the BMH is long gone, you might as well visit Hamelin, now that is a nice town to visit, was there 18 months ago, Hoek to Rinteln is a days ride and and easy day, Hoek-Utrecht-Apeldoorn-Hengelo-Osnabrucke-Bad O-Rinteln, my bike could have done that on auto pilot back when I lived in Herford. But thats all you will do is travell if you want to hit it in a day. Rember that Rinteln is not far from Wolfsburg and the Autostadt now I know its not bikes but it is worth a look.