The SpeedBox tunings are well known for their high-quality components and for their advanced processor-controlled chip which fully unlock the engine up to +99 km/h. Thanks to the new processor, speedo accuracy is even more accurate than ever and now compatible with most popular MY2021 engines brands and models. The most advanced B.Tuning tuning connects your ebike and your smartphone via Bluetooth connectivity and comes loaded with some appealing features such as engine-lock, tuning activation control, customisable speed limits to preserve battery, and monitor, save, and share all your riding parameters.