The Giant Cog, You asked for it, WTC made it -- the Wolf Tooth GC is now available in a slightly smaller size! Most of the low gearing from its big brother with improved shifting in the smaller cassette cogs.
We have chosen to make separate cogs for Shimano and SRAM for two reasons: 1) we design each one for the best possible shifting performance instead of a compromise on both and 2) installation is simplified because no extra spacers are needed.
Use of this cassette sprocket requires removal of the 17T or 15T cog & spacer from your cassette.
Note on “B-screw”: WTC has found that a longer screw is almost never needed with SRAM derailleurs and only needed for about 50% of Shimano derailleurs. WTC has added it as a separate item in their accessories category. If you think you might need the longer screw, order one separately (CBO part number 100140788).
You may need a longer chain than what is presently on your bike. Make sure that when shifted to the 40T cog, there is still some amount of forward travel possible with the rear derailleur cage. This is especially important on bikes with rear suspension. WTC has tested with Shimano, KMC & SRAM chains – all function well.
The Wolf Tooth Components GC cassette cog is available in two versions: one for Shimano cassettes and one for SRAM cassettes. This Shimano version is compatible with the following models:
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