Rescue your $400 cassette with the Wolf Tooth GCX Cog! A worn out large sprocket is no reason to send your cog set to the dumpster. Simply swap out your old cog with the Wolf Tooth GCX Cog and reunite yourself with the smooth shifting of a new cog.
To remove your stock cog, gently pry with a screwdriver between 36T and 42T at each pin location. You will need to go around the cassette 2-3 times, moving the cog just a little each time.
To install the Wolf Tooth GCX cog, align large hole (see laser marked triangle) with large pin on cassette. Gently squeeze each of the 18 pin locations together with a Channel Lock type pliers until all pins are bottomed out.
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