KMC Bosch Gen 4 Super Narrow Chainring, Black, 38T, Chainline 50.0mm

• Suitable for Bosch Gen 4 Performance Line CX and Performance Line Speed from MY2020
• Designed to work seamlessly with KMC e-bike chains, pair with an appropriate KMC e-bike chain to achive a minimum of 3500km
• Compatible with all 1-8 speed chains (1/2 x 3/32") and all 9-12 speed chains (1/2" x 11/128")
• Chainline: 50.0mm
• Direct Mount, 7.0 mm offset

KMC Bosch Gen 4 Super Narrow, 38T, Chainline 50.0 mm KMC created the ""Chain Mate"" where the chainring roller seats between teeth are matched to chain rollers for exceptional component engagement. Made of High Tensile Steel, the Chainring structure enhances retention with an optimized tooth design to hold the rollers in place, significantly preventing chain drop while also reducing friction associated with traditional narrow/wide designs. In addition, the teeth are vertically asymmetrical to avoid interference while at extreme chain angles to the cassette. These chainrings from KMC are suitable for Bosch 4th generation motors. Use in combination with a suitable KMC to ensure a minimum of 3500km life span. Longer lasting, quality material and unparalleled gear changes. Designed specifically for Bosch 4 Systems Hardened CrNo steel Maximum efficiency, saves battery Extreme durability, highest precision Simple conversion Size: 1/2"" X 11/128"" Treatment: Hardened Chromoly steel Direct Mount: 7.0mm offset Perfectly matched to KMC chains (e1, e12, e11, e10, e9 and e8 chains)