[QUOTE=bboy314;23212829]Also, looks like the bike is stocked with a 40 tooth chainring, so you may need a longer chain with the 42./QUOTE]

Unless the chain was right at the limit, adding 2 teeth to the chain ring would NOT require a longer chain. Remember, chains add length in one inch increments, while 2 teeth on the chain ring requires only a half inch more chain.