All information on the E-VERSA COMFORT 2013 Hercules - greenfinder.de
Hercules Klapprad Rob Fold - Produkttest / Fahrradvorstellung - YouTube
My 70s german Hercules "Klapprad" folding bike. with a few minor modifications and upgrades it turned into a very nice little bike. And the doumatic-kickshift is just a great piece of engineering
Hercules Rob Fold I-F8 2019 - Emotion Technologies