This is the necessary tool to remove the Bosch chainring spider on the new style (2020+) Bosch Performance CX Gen 4 Bosch eBike systems and also Bosch Active Line bikes featuring the larger sprocket.
This comes in handy if you need to remove the spider / sprocket to gain access to the motor behind for routine maintenance.
You will also require the Bosch Crank Puller (for the Gen 4 CX motor) or the smaller Bosch/Yamaha Crank Puller / Removal Tool (for Bosch Active Line Plus).
This is for Bosch Performance CX Gen 4 systems produced on/after 2020 and Bosch Active Line/Plus systems (Featuring a big sprocket on the front).
Please make sure your motor system has a big sprocket on the front and looks a similar shape to this:
Please Note: We no longer accept returns on tools. Please make sure you follow the clear guidance above for motor type. We have had instances where people have used the tools and tried to return them.
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