stromnes,
Here's a chart that shows the ratios when you make a change;

http://www.sprocketcenter.com/g/4156...tio-chart.html

As you can see, one tooth change in the front equals a three tooth change in the rear. My Qlink XF200 came with a 15/48 combination that I changd to 16/44 and am very happy with it. Others have kept the 15T and just changed the rear. You might want to get a 16T and ride with it for awhile and see how you like it as you already have the 44T rear. The front is far easier to change and is cheaper.