Originally Posted by
Iride01
If you are going to spend $180.00 for new 10 speed shifters then for as little as $97.00 more you could make it 11 speed Shimano 5800...
Unless he's running a rear hub that's newer than the rest of the bike, he doesn't have an 11-speed freehub. If that's the case, add a new freehub, hub, or wheelset to the cost of an 11-speed upgrade.
<EDIT> Oops. I just noticed jimc101 beat me to mentioning this.