Ok, so I'm replacing the chain for the first time on my Gary Fisher Tiburon. So I went and bought a chain today at my local bike shop and when I go to compare it to the old chain, it's 2 links too short! My old chain is 116 links and the new one is 114. I called the guy at the bike shop and he said that the chain should be too long not too short. This is the same bike shop who assembled it, did they just assemble it with too much chain or should it really have 116 links. The guy thought I was full of crap when I told him it had 116 links. The shop's closed on Sundays and I'd really like to get this resolved by myself to tomorrow.
If I go ahead and put the 114 link chain on there will anything bad come of it? Will the derailers have to be readjusted?