How many watts is a Bosch Gen 4 motor?
The Bosch Performance Line CX Gen4 motor (BDU450 CX) delivers 85Nm torque and 250W power, making it one of the most powerful e-bike motors available. The Bosch Performance Line CX Gen5 motor had an update to allow a torque increase from 85Nm to 100Nm, delivered as a free over-the-air update through the Bosch Flow app. It started rolling out from July 2025, and it applies to every Gen5 CX motor already on the road. That is genuinely good news.
What is the most powerful Bosch motor?
Performance Line CX is Bosch’s most powerful motor designed for electric mountain bikes. For many, the Bosch Performance Line CX Gen5 is the definitive eMTB motor. It’s fitted to more bikes than almost any other drive unit and has earned a reputation over the years as a dependable all-rounder backed by a strong support network. It’s the motor that just works.