Thanks everyone. She has 42/52 up front and I don't think she has ever used the large ring. She never needs to put it higher than the 42/15 but there are some big hills here so she needs to quickly drop down to the largest rear cog. I'm going to be doing an overhaul on the bike and am considering not even using the larger ring and making it a 6 speed. For all I know she may not even be keeping it on the smallest cog anymore. She crashed a few months back and so she has been riding at a more commuter pace since then.