We investigate the potential for reducing carbon emissions in the transport sector due to E-biking based on a large sample of cyclists in Switzerland and using a combination of GPS tracking and surveys. The first part of the project assesses the current situation and improves on the present state of knowledge about mode shift due to E-biking and the transport choices of E-bikers. The second part consists of a randomized control trial that implements a pricing intervention on a subset of the participants with the aim of substituting car with E-bike travel. We measure the resulting causal effects on carbon emissions and investigate mode substitution, with a special focus on cycling, driving and public transport. The third part conducts a route choice analysis to inform future policies and measures to promote cycling. Last, the potential for carbon reductions due to E-biking in Switzerland is computed, using insights from this research and considering different scenarios, i.e., future mobility pricing and transport policies.