Yeah, I know what BikePedia said, but if you look, it is a bottom pull. I think KHS is confused on what "Top Pull" means. Just like they are confused with what components will work together.
The FD4428 is an R453, not a Sora derailer.
Rear derailers and shifters don't matter, both the mountain and road group use the same pull ratio. Front derailers are different. Shimano does not make a 9 speed grip shifter, maybe the one you have was made to work with road derailers. But according to BikePedia it was spec'd with R440 shifters.
There is no way around the different pull ratios of Shimano's mountain and road front derailers. You can get them to "work" but there will be compromises, like the ones I mentioned above. If you are satisfied with compromised shifting, then by all means use a mountain shifter with a road derailer.
Last edited by SweetLou; 03-06-12 at 12:40 PM.