Originally Posted by
ClarkinHawaii
The trick you can't see is that the bolts attaching the rings to the spider are super tight. Whether or not you take the crankset off the bike to do the changeover, you might want to consider loosening the bolts (Breaking them loose) while the cranket is still installed on the bike, as this configuration gives you much more stability and leverage. Same with final tightening after you're done.
Also, leave the chain on the big ring while you break the chainring bolts loose. That way, if your hand slips, you'll be less likely to stab yourself.