Bike tyre pressure science! What is optimal for Road TT Tri Cx MTB

FFT formula #1 for finding correct tyre pressure for your bike based on 1. total weight (rider+bike) 2. tyre width 3. front/rear balance 4. riding surface. Google Sheets TIRE PRESSURE CALCULATOR https://goo.gl/QoMv5P. see Formula #2 and part 2 here:    • FFT's formula #2 Adjusting tyre/tire volum...