Make your ebike quicker in no time at all with the Badassbox, in only a couple of moments this magic little box can transform your ebike to the way it was before it was restricted. Once you get back on public roads, the badassBox can be removed in seconds. Your ebike is, once again, legally in compliance with the regular speed limits. You read '15' - and drive at 30! Don't be surprised at your speedometer: When your ebike is travelling at 30mph with a mounted badassBox, the speed displayed is only 15mph. The badassBox Type3.4 is compatible with Bosch Yamaha, Shimano, Conti