Sram pc 971 bicycle chain 9 speed this sram pc 971 9 speed chain is chrome hardened and compatible with shimano 9 speed drive trains excellent for power transfer and efficient cycling the sram pc 971 is a go to chain for beginners intermediate and advanced cyclists pick yours up today from probikekit th key features chrome hardened with nickel plated external pin plate and grey steel internal pin plate recommended for high end groupsets gold connector compatible with shimano