I recently bought a Redline monocog 29er and from looking at the rear cog it is clear I do not have the proper tool to remove it. It is cassette style but my cassette lockring tool will not work. I looked at the parktool site and am still not clear what I need. Can anyone tell me what tool to buy?
Also, as long as I am asking questions, does anyone have opinions on using two tugnuts? I bought a pair of redline ones but from what I have read only one is necessary. Is two overkill?
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Thread: Cog removal tool?