Bosch Gen 4 Super Narrow, 40T, Spacerless, Chainline 52.0 mm

  • Hardened Chromoly steel
  • For Bosch 4 systems
  • Maximum efficiency which saves battery
  • Direct Mount, 9.0 mm offset
  • Perfectly matched to KMC chains
  • e1 / e8 / e9 / e10 / e11 / e12
  • Art.nr.: BCRB4RL15240S3
  • Size: 1/2" X 11/128"
  • Colour: Black