The Story
The Stronglight Bosch Gen 1/3 4-Bolt E-Bike Chainring 104 BCD 38T Black is a heavy-duty CNC-machined chainring built to handle the extra stress of electric bike riding powered by Bosch mid-drive systems. Made from tough 7075-T6 aluminium, it delivers confident wear resistance under higher motor torque, helping reduce chain stretch and premature tooth wear for smoother, more reliable commutes and trekking rides. With a standard 4-bolt 104mm BCD interface, it mounts securely for precise drivetrain alignment, supporting consistent power transfer every time you pedal.
Description
The Stronglight Bosch Gen 1/3 4-Bolt E-Bike Chainring 104 BCD 38T Black is a heavy-duty CNC-machined chainring built to handle the extra stress of electric bike riding powered by Bosch mid-drive systems. Made from tough 7075-T6 aluminium, it delivers confident wear resistance under higher motor torque, helping reduce chain stretch and premature tooth wear for smoother, more reliable commutes and trekking rides. With a standard 4-bolt 104mm BCD interface, it mounts securely for precise drivetrain alignment, supporting consistent power transfer every time you pedal.
