Before I go cutting this bike up willy nilly, I'm trying to get a good understanding of bike steering geometry. It's more confusing than I expected it would be. You have to consider the head tube angle, the offset/rake, and the wheel diameter. The combination of those give you the trail, which is the distance between the where the steering axis would touch the ground if it were projected and the patch where the tire actually touches the ground. They also create wheel flop, which is the tendency for the wheel to flop to one side or the other (which this bike currently has way too much of)