The Shimano STEPS SW-E7000 Switch operates with Shimano STEPS E7000 drive units. FEATURES: Designed for controlling power assist modes on Shimano STEPS eBike drive systems Features two large and definitive buttons for increasing or decreasing assistance The small third button changes the STEPS cycle computer display or switches the system between automatic and manual shift modes Assist switch features motor assist to push the bike and a walk assist mode Power mode change is easy and simple