Stromer - Controller 6v ST1 X, ST2, ST2S (2017 & before) bike protection Whether you're commuting through the

Whether you're commuting through the city

Simple installation on HSD frames to enable quick setup and removal

and a complete set of fasteners

Part of Shimano’s cycling drivetrain components for dependable road performance

Smart System compatibility for optimized performance and monitoring

Stromer - Controller 6v ST1 X, ST2, ST2S (2017 & before) bike protection Whether you're commuting through theSpecs Model: Stromer Controller 6v ST1 X, ST2, ST2S (2017 & before) Voltage: 6V Construction: Aluminum enclosure with ventilation and mounting holes Wiring harness: Multi color power and signal leads with connectors for quick integration Form factor: Elongated enclosure designed for frame mounting Features Durable aluminum enclosure with ventilation for heat management Ventilation holes and mounting provisions for secure frame installation Multi color