Bosch E-Bike Chainring for BDU2XX System 15T

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The Bosch E-Bike Chainring for BDU2XX System 15T is a precision 15-tooth replacement chain wheel designed to match Bosch Active, Performance, Performance CX, and Performance Speed Gen2 e-bike drive units from 2014 onwards. By restoring correct gearing between your crank and Bosch e-drive, it helps keep power delivery feeling smooth and responsive every time you ride, while supporting efficient motor assistance. Show more