Originally Posted by
JohnDThompson
Cogs carry the load on fewer teeth, so they wear out much faster than chainrings. If you replace the chain and cog as they wear, you may never wear the ring to a point wear it needs replacing. Unless you ride a lot in muddy/gritty conditions, anyway.
Okay, good to know. I just ordered new wheels, cog and chain. Got my eye on a new crankset later this spring.