KMC Bosch 11/128" Front Sprocket

• Specifically designed for Bosch E-Bike systems, the KMC Narrow chainring is a perfect solution for replacing or upgrading your current front sprocket
• Combine with a KMC chain and vastly increase your drivetrains mileage to over 3,500km
• Front Sprocket Compatible with Bosch Gen II Mid-Motor Systems
• Perfectly matched to KMC chains for maximum efficiency which saves battery
• Size: 1/2" X 11/128" (Super Narrow)

Drivetrains on e-bikes with strong mid motors are subject to enormous constant load. Based on that fact, KMC offer specific e-bike chains and sprockets for Bosch motors and internal gear hubs.

Specifically designed for Bosch E-Bike systems, the KMC Narrow chainring is a perfect solution for replacing or upgrading your current front sprocket. By incorporating KMC into your drive train you can vastly increase useage and ensure a mileage of over 3,500km.

• 1/2" X 11/128" or 1/8"


• For Bosch II Systems


• Chromoly Black

Department: ‎Unisex Adult
Item Length: 188
Part Type: Bike Spares
Size: 18T
Sport/Activity: ‎Cycling
Type: Chainrings

Material: ‎Other

UK Delivery:

• Free delivery on all orders of £10 or more.
• £1.49 delivery fee on orders below £10.
• UK orders are shipped via Royal Mail 2nd Class.

International Delivery:

• Flat rate delivery charges vary by country.

Dispatch and Delivery Times:

• All orders are shipped from our warehouse in Northampton, UK within 48 hours of receipt during working hours.
• UK mainland orders typically arrive within 3-5 working days via Royal Mail 2nd Class.
• International estimated delivery times:
• Europe & Channel Islands: 7 to 10 working days
• USA: 7 to 15 working days
• Rest of the World: 9 to 21 working days

View our full delivery infomation here.