Originally Posted by legalize_it
that settles it then. my housemate and i were trying to figure this out, but we werent definate. hes a civil engineering student and im an electrical engineering student. we need a mech. eng in the house i guess!
legalize it, where are you studying?
to get back to banjo bob's original question: you can change the cog or the chainring; it won't matter much which you change regardless of the argument that precedes this, if only because you're not making a big change.
as for the price question, it depends on whatcha get. a dura-ace cog tends to sell for more $$$ than a rocket-ring (which will fit 130mm cspiders, btw), but generally, the rings cost more'n cogs.
hth.
-rob