so you roll your eyes at someone who is thinking of doing the same thing you were thinking of??No one's running a 120mm fork on their Prime, why would they? ut: Prime is designed around a 140mm fork, BB height is perfect with it, as is the HA, why would anyone purposely lower the BB and steepen the HA? I had intentions to try a 120mm fork on mine, but once I got it I quickly realised what a silly exercise it would be. If you want a bike with less travel or steeper angles, maybe the Prime isn't for you.