- Z8.3 **Pin Power**: The unique KMC Bulls-Eye pin mushrooming technique, which provides 200kgf of average pin power for unsurpassed side plate retention. **Noiseless**: Special Z bridge side plate configuration and chamfering provide excellent shifting performance and minimise noise even with a mix of different derailleur components. **Nimble Shifting**: The Z bridge side plate configuration means faster, smoother, quieter and more precise shifting. * 1/2" X 3/32" - 114 Links, pin length 7.3mm * Compatible with: 6-12-18-21-24 speed * For City, MTB, Race, Trekking and Hybrid * Tensile strength 1020kgf * Bushless construction * Half Nickel plated