E-Bike Chainring KMC F Bosch 21T Chromoly Black 11/128"

E-Bike Chainring KMC F Bosch 21T Chromoly Black 11/128"

The KMC F Bosch 21T chainring is designed for e-bikes using Bosch II systems and a direct mount interface. It is a high-quality drivetrain component that helps ensure precise chain engagement, smooth running and efficient power transfer under the higher loads typical of electric bikes.

Made from hardened chromoly steel, the chainring offers excellent wear resistance, strength and long-lasting reliability. The 21-tooth design is suitable for Bosch II e-bike drivetrains where a durable component is needed for everyday riding, servicing or replacing a worn part.

The direct mount design helps keep the drivetrain compact and stable. This chainring is perfectly matched to KMC e1, e12, e11, e10, e9 and e8 chains, delivering maximum efficiency, reducing power loss and helping save battery energy on longer rides.

• Product: e-bike chainring
• Brand: KMC
• Compatibility: Bosch II system
• Mounting: direct mount
• Teeth: 21T
• Size: 11/128"
• Material: hardened chromoly steel
• Compatible chains: KMC e1, e12, e11, e10, e9 and e8
• Colour: black