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Have a 10 speed SRAM cassette? Do you climb a lot? Consider upgrading your cassette to a more climb friendly gear ratio with the Wolf Tooth Components GC 42 + 16t Cog Bundle for SRAM 11-36t 10-Speed Cassette. This replaces your 36t and 14t cogs, revamping your gear range for smoother shifting and more versatility so you can pedal harder, longer.
7075-T6 Aluminum
Exceptions – Remove the 14t cog on the XG-1080 instead of the 17t.
Rear Derailleur – Compatible with all SRAM 11-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.
10-Speed Cassettes – Compatible only with the following SRAM 10 Speed Cassettes: X5 11-36T (PG-1030), X7 11-36T (PG-1050), X9 11-36T (PG-1070), X0 11-36t (XG - 1080).
Not Compatible – The GC 42 is not compatible with 2011 or older SRAM rear derailleurs. The best ways to tell the vintages of your rear derailleur is 1) If you have a type 2 (clutch type) rear derailleur it is 2012 or newer and 2) the upper jockey wheel on 2012 and newer rear derailleurs are offset from the derailleur cage's axis of rotation.