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Information relevant to Wolf Tooth Components 42T GC Cog for Shimano - Silver - TGY9HX_EM0V:
Wolf Tooth Shimano GCs replace a cog on your XT or XTR 10-speed cassette in order to provide extra low range for your 1x drivetrain. Cog Teeth (teeth): 42 teeth. Compatible only with the following Shimano 10 speed Cassettes: XT 11-36t (CS-M771), and XTR 11-36t (M980).









