10-speed chain too short, can I add links? I purchased a new KMC DX10SC 10-speed 114 link chain to replace my worn out chain. I'm running a mountain triple and it seems that The chain is slightly too short at it's full length. I can't get in the big ring on front chainring and rear cassette at the same time. I don't necessarily want to ride like that (terrible crosschaining), but I would prefer to have the capacity to do so since If I shift up to the top of the cassette it locks the derailleur in to place due to the tension and I can't shift out of it.

So, can I simply push out the pin and add a few more links and re-join it the same way? I'll have to buy another chain presumably to extend it or find some spare 10-speed links. Is this something that causes problems with 10-speed chains or can I do it the same way I've always done with my 6/7/8 speed chains? 

I figure my alternative is to get a short patch of chain and use a couple KMC missing link quick links to join the sections together.
10 speed chains aren't designed to rejoined like 7 speed chains. The outer plates are thinner and the pins sit flush with the plates, which leaves little margin for error when reinserting the pin. The pins are often riveted too so they can't be correctly reinserted even if you are able to perfectly line it up. I'd use extra connector links instead of trying to reinsert the pin.