Shimano Gear Hub Sprocket Nexus 18 Tooth or 19 Tooth Genuine Replacement 3S-N -H

Available in 18 or 19 tooth options, it allows you to fine-tune your gearing to suit your riding style and needs. Compatibility: Shimano Nexus internal gear hubs. Type: Nexus Gear Hub Sprocket. Tooth Options: 18T or 19T (select option).