Genuine Bosch **Performance Line CX, Gen 4** mid-drive motor / drive unit (BDU450CX, 85 Nm, 250W). **It works** — powers on and runs — but is being sold **for parts / repair, no warranty, as-is**. Great for someone needing a working Gen 4 CX for a swap, a donor unit, or a repair core.
- Generation: **Gen 4** (confirm compatibility — Gen 4 differs from Gen 2/3 and the newer Smart System/Gen 5 mounting & wiring)
- Status: functional, sold as-is for parts/repair
- **No warranty — all sales final**
- Local pickup, cash.