The Power Glide Chainrings are all the same for Apex, Rival, Force, and S900. I would just get new road compact rings rings for your BCD, and leave it at that.
At this point, as bigfred said, unless you are pushing 20+ MPH average, just put some wider road wheels on your current wheels (likely 28mm), and see how it feels. You may actually prefer the softer ride of the larger tires anyway. Having a narrower tires doesnt automatically = faster.