I've just bought a 1984 Trek 500 and Suzue Track wheel. I have stripped down the old bike into a fixed gear machine. Here is my problem: the track wheel came with a 14T cog and the smallest chainwheel I can fit on my 144BCD cranks is 42T (yes, there is a rare 41T chainwheel).
This is too tall of a gear for my geographic location and want to buy 15 and 16T cogs.
What tools (at a minimum) do I need to swap out the cogs. I've got a DuraAce lock ring, if that matters.
When I bought the bike, I planned to swap the chainring down to a 38T, but was surprised to find that the bolt circle is 144mm instead of 130. This is actually a better situation for stiffness i suppose, but now I need to buy tools to change the cog.
Thanks in advance.