This KMC direct-mount chainring is specifically designed for Bosch Gen 4 (G4) e-bike motor systems. At 34 teeth with an 11/128" pitch, it delivers a climbing-friendly gear ratio suited to technical trails and hilly commutes. Black anodised construction keeps it lightweight while providing the durability required for high-torque e-bike motor applications.

  • Compatible with Bosch Gen 4 (G4) e-bike motor systems
  • Direct mount interface
  • 34T, 11/128" pitch
  • Black anodised aluminium construction
  • KMC quality, made for high-torque e-bike use
  • Climbing-friendly gear ratio

KMC chains are covered against manufacturing defects. If a chain fails from a defect in materials or workmanship, return it to Tune Cycles with your proof of purchase and we'll manage the claim with KMC on your behalf — no need to contact the distributor yourself. This is in addition to your rights under Australian Consumer Law, which apply regardless of any manufacturer's warranty.

  • 34 teeth, 11/128" (narrow) profile
  • Direct mount for Bosch Gen 4 mid-drive motors
  • Steel, black finish
Teeth34T
MotorBosch Gen 4
MountDirect mount
Profile11/128" (narrow)
SKU BPW-0477
Model # 0477
Brand KMC