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When 10-speed 11-36t cassettes were first introduced, the resulting range that they provided riders was revolutionary. Now with the Wolf Tooth Components GC Shimano 10-Speed Cog you can swap out that lowest gear (i.e. biggest cog) for some much appreciated help on big, arduous climbs. Save your legs and blow past your buddies by customizing your 10-speed Shimano cassette with the Wolf Tooth Components GC Shimano 10-Speed Cog.
7075-T6 Aluminum
Cassette – Compatible with Shimano 10-speed cassettes: XT 11-36t (CS-M771), XTR 11-36t (CS-M980), SLX HG81 11-36t (must drill out rivets holding the 17t to the larger cogs), Sunrace 11-36t.
Hub – These fit very tightly on certain Stan's No Tubes hubs like the 3:30 and the Easton X4 hubs. With a little filing and some grease, they will go on.
Rear Derailleur – Compatible with all 10-speed rear derailleurs and chains. Note that you may need a longer chain than you currently have on your bike. Chain stretch should be less than 0.5 when installing a new GC.
Can Be Run In 2x Configuration with a Long Cage Rear Derailleur