There's no lack of online arguments about whether or not Vr is "real" or should exist. I just followed what my CFI and Cessna's manual for the C172 said (which

There's no lack of online arguments about whether or not Vr is "real" or should exist. I just followed what my CFI and Cessna's manual for the C172 said (which iirc was giving input to rotate at 55kts).