KMC Bosch Gen 2 Super Narrow Front Sprocket, Black, 15T
KMC Bosch Gen 2 Wide Front Sprocket, Black, 18T BSFB5818
KMC Bosch Gen 2 Super Narrow Front Sprocket, Black, 18T
KMC Bosch Gen 2 Wide Front Sprocket, Black, 20T
KMC Bosch Gen 3 Super Narrow Direct Mount Chainring, Black, 38T, Chainline 47.5mm of 50.0mm
KMC Bosch Gen 4 Super Narrow Chainring, Black, 34T, Chainline 52.0mm
