Shimano steps sw e6000 switchdeveloped for electric bike e bike use, this switch unit provides a clean and intuitive design for controlling steps power assist and di2 shifting. It offers riders customisable switch functions, which are able to be set by the e tube project. It provides fully automated shifting, light controls, as well as walk assist activation. Switch for seis shift and for assist mode high normal eco off set by e tube project. Switch for cycle computer contents.features use e bike, for assist or seis shift e tube connector numbers 1 compatible sc sc e6000 e6010 number of buttons 3 firmware update by e tube project yes assist mode change yes weight 25gtechnologies e tube the e tube platform's “plug play” and d fly wireless connections make it easier than ever to check the system's status, and apply customized settings to di2 and shimano steps components with a pc, tablet or smart phone. Wirelessly customize functions like shimano synchronized shift over bluetooth while out on a ride. Automatically checks for firmware updates on each startup to ensure all components are running the latest version. Pc, smartphone and tablet applications can help you quickly diagnose errors and simplify the repair process. Beautiful visualization of your real time shimano steps riding data on your smartphone. Advanced all weather design resists rusting, stretching, and freezing.a 2 year warranty is offered with all shimano products from chain reaction cycles 3 years on dura ace and xtr products.buy shimano components from chain reaction cycles, the world's largest online bike store.