KMC Narrow Wide Direct Mount Chainring Compatible with Bosch BDU38/34

• Perfectly matched to KMC chains
• Specifically desgined to be compatible with Bosch Drive Units BDU38/34
• Narrow-wide tooth profile for precise interaction between chain and chainring
• Maximum efficiency which saves battery
• Dirrect Mount interface

The KMC e-bike chainring for Bosch BDU38 & BDU34 systems. is purpose-built for direct mount installation, eliminating the need for a separate spider and creating a cleaner, more integrated connection to the motor unit. This precise engagement significantly improves chain retention, particularly on 1x e-Bike drivetrain systems with pronounced chain lines. Also compatible with Bosch BDU4, BDU37 and BDU31 systems, however, please note the difference in chainline. Constructed from quality High-Tensile Steel to withstand the additional torque and load that comes with motor assistance, it features the same narrow-wide tooth profile found across KMC’s range, with a