KMC Super Narrow Chainring Compatible with Bosch Gen 4 e-Bike Motors - Spacerless - Direct Mount - Black, 40T | Chainline 52mm

• Spesifically designed to be compatible with Bosch Gen 4 Performance Line CX and Performance Line Speed from Model Year 2020
• Designed to work seamlessly with KMC e-bike chains, pair with an appropriate KMC e-bike chain to achive a minimum of 3500km
• Perfectly Matched to KMC Chains – Works flawlessly with KMC e-bike chains - e1 / e8 / e9 / e10 / e11 / e12
• Direct Mount - Ensures precise alignment and smooth operation
• Not compatible with 12-/13-speed flattop chains and Shimano 12-speed chains

These chainrings from KMC are compatible with Bosch 4th generation e-bike motors. Designed to last a minimum of 3500km, combining these with KMC’s E chains to extend the life of your chain and chainring even further. Longer lasting, quality material and unparalleled gear changes. Features Designed to work seamlessly with Gen 4 Performance Line CX and Performance Line Speed from Model Year 2020 Hardened Chromoly steel Maximum efficiency which saves battery Extreme durability, highest precision Perfectly matched with KMC Chains - e1 / e8 / e9 / e10 / e11 / e12 / DLC12 Not compatible with 12-/13-speed flattop chains and Shimano 12-speed chains Specifications Size: 1/2" x 11/128” Colour: Black Compatible with Bosch 4 e-bike motors Also Compatible with Bosch BDU38/34 motors. However, this results in different chainlines, which must be considered during installation