SpeedBox 3.1 B.Tuning module for Bafang M300, M400 & M420 e-bikes with 4-pin plugs– E-Bike Tuning
eBike Speed Unlockers — CYCLEFAB, LLC
Amazon.com: Volspeed V4 Tuning kit Compatible with All Bosch 2014-2023 Motors Gen2 / Gen3 / Gen4 : Automotive
Speedbox Bafang 3.1 B-Tuning 4 Pins Speedbox, Golden | Bikeinn
SpeedBox tuning chip for e-bikes with Bosch mid motor - Package: BOX, Qty: 1 pcs
SPEEDBOX 3.0 for Bosch // eBike Tuning also for Bosch 4th Generation engines // Smart tuning chip 3rd generation with crank puller : Amazon.com.be: Sports & Outdoors
SpeedBox 2.0 B.Tuning for Bosch (excl. Gen4) – SpeedBox
SpeedBox tuning chip for e-bikes with Bosch mid motor - Package: BOX, Qty: 1 pcs
Tuning Chip E-Bike SPEEDBOX 1.3 B.TUNING 4 pin connector for 4 pin connector Assembly: invisible at the drive motor displayed: Actual values up to 23 km/h, then in app activation: light-button controls: