SPEEDBOX 3.0 for Bosch / eBike Tuning, also for Bosch engines of the 4th Generation / Smart tuning chip of the 3rd Generation incl. 1 crank puller : Amazon.co.uk: Sports & Outdoors
Speedbox 3.0 for BOSCH (2017-21) ebike tuning speed unlock
Active Line Plus Gen 3 - SpeedBox 3 - Wiring | EMTB Forums