Turning an old budget mountain bike into a "comfort" bike with a more upright ride. Put the sparrow on a Sorrento, added a 0-60 degree stem 110mm long at 60 degrees and I am wicked comfortable. Required new brake and shift cables, but was an easy job. Ended up doing it twice...once for me and once for my wife's Sorrento. Love the new position and not worried about the performance...never was a single track rider! Back and shoulders never felt better and I can see the ride instead of the dirt now.