Electric bike in Nynäshamn. Welcome to Ecoride's authorized electric bike store, JK Cykel. Here you can test ride and receive guidance on electric bikes. As an authorized dealer, the store has access to Ecoride's range of electric bikes, all designed with a focus on quality and thoughtful construction. A smart, centrally placed battery ensures a balanced, stable ride. Welcome to test ride an electric bike in Nynäshamn today.