Last night I changed the chain on a new bike I bought in May. I've only put 900 miles on it. This morning with the new chain on, I got some pretty extreme chain slippage while in the two rear cogs I use the most. There's no stiff link on the new chain, and everything was working just dandy prior to changing the chain.
Is it possible that I have that much wear on my cogs after only 900 miles? The old chain did have some stretch on it, but only 1/16 to 1/8 inch.